A dad I know recently told me why his daughter left football.
Not because she stopped liking it, but because it had stopped helping her make friends.
For two seasons, she played in a relatively coherent team. Much the same group trained together week after week. Names became familiar. Jokes accumulated. Small rituals formed around the football.
In the third season, the programme changed. The wider cohort still came together each week, but the children were split into smaller groups for the session. Those groups changed from week to week.
The programme remained. Many of the same children remained. She remained active.
The programme still had continuity. Her pattern of interaction had less.
She eventually moved to splash polo, encouraged, fittingly enough, by another friend.
A participation dashboard could record the transfer: football lost a participant, splash polo gained one, and the wider system retained an active child. A participant survey might tell us whether she enjoyed the programme, felt welcome or experienced belonging.
Both would be useful. But most of the visible parts of her football experience were still there.
What had changed was the pattern between them.

For two years, she repeatedly spent time with much the same group of peers. In the third, the wider programme remained relatively stable while the people she actually interacted with became less predictable.
I do not know why the programme changed. The new model may have been designed around entirely legitimate priorities such as flexibility, attendance, skill grouping, coach capacity or participant choice. A good participant-centred process might also have discovered that familiar peers mattered to this particular girl.
But once we know that, another question appears: what in the design was carrying that value?
The story stayed with me because it seemed to expose, in miniature, something I keep seeing elsewhere in sport.
Social language is not hard to find in sport: belonging, connection, stronger communities, trust, cohesion.
Sport increasingly makes claims about the social value created around participation. I am not arguing those benefits are imaginary. Sport plainly brings people together, and participation can contribute to important social outcomes.
What I keep noticing is how differently we treat the social ambition and the operating model beneath it.
At strategy level, we can speak confidently about belonging, connection and community. At delivery level, we become much more precise: programme format, session length, facility, staffing, participant numbers, budget, equipment and delivery targets. At evaluation level, we may count participation and ask people about their experience.
Then, when describing the wider value, we return to relational and collective language.
Somewhere between the strategy and the session, some of that social specificity can get lost.
We can see the participant. We can see the programme, session, coach, venue and funding. And we can name the social outcome we hope they contribute to.
The relationships in between are harder to see.
That matters more as the social context changes. I have previously described two potential tailwinds for sport. Social cohesion is becoming more consequential to governments and institutions. At the same time, dependable face-to-face interaction may be becoming more valuable as opportunities for it become less routine.
The second is an inference, not a certainty. But if regular embodied interaction becomes scarcer, settings that can provide it deserve closer attention. Sport is unusually well positioned in that respect.
The question is whether its operating logic is as specific about that relational opportunity as its strategic rhetoric increasingly is.
In What Connection Conceals, I argued that part of the problem sits in the language itself. “Connection” can conceal very different social ambitions. Belonging within a group is not the same as relationships across groups. Neither is the same as a credible relationship with an institution.
Greater specificity helps us name the social job. But then comes the harder question:
How does that social ambition become a design decision?
If belonging genuinely matters, what would we protect? If a funder wants to strengthen relationships between groups that rarely interact, putting those groups in the same programme is not enough. If a sponsor promises to strengthen communities through sport, the promise eventually needs to translate into relationships that could plausibly change.
This is where the social ambition has to survive contact with design.
Sport already has a useful way of seeing the underlying problem.
“Developing players is not the same as building a team”
A coach can improve the skill, fitness and decision-making of every individual player and still miss something important about how the team functions, because some of what makes a team work does not sit inside any one player.
It sits between them: who trusts whom, how roles fit together, who recognises the run before it happens, what has become understood without being said. One interaction builds on another.
The players matter enormously. But understanding each player individually does not fully explain the pattern they create together.
Sport's social ambitions ask us to apply the same logic more widely to: distinguish between what sits with the individual and what exists between individuals.
That distinction matters because we have become much better at asking whether an experience works for the participant. Can they access it? Does it fit their circumstances and motivations? Can they participate safely and meaningfully? Do they enjoy it? Do they want to return?
That was important progress, and the participant remains central. But belonging, bridging, trust and cohesion depend, in different ways, on what forms between people.
The participant is not the wrong unit. It is the wrong place to stop when the outcome is relational.
A team makes that easy to see because its relational boundaries are unusually obvious. But the lesson is not that every sport experience should become more team-like.
The useful question is what remains when we strip the team away.
Relationships need somewhere to accumulate
Consider parkrun. People come and go. Volunteers change. There is no fixed team. Yet Saturday morning keeps turning up. So does the place, the activity, the ritual and enough familiar faces for one week to connect to the next.
Or informal pickup sport. There may be no membership list, programme manager or coach, but the same court, recurring time, game, norms and some familiar people can make the arrangement recognisable.
Or a clubroom. The room itself is just infrastructure. It starts to matter socially when people repeatedly stay after activity, occupy familiar roles, encounter one another and become known beyond their formal team. The room gives the social life somewhere to linger after the activity has finished.
A team, parkrun, pickup game and clubroom look quite different. What they can share is enough continuity for one encounter to build on another.
Someone recognises a face. A child knows where to stand. A parent no longer needs introducing. An absence gets noticed. Someone stays to help without being asked.
Relationships begin to leave traces.
And those traces need somewhere to accumulate.
I use social container as a practical label for that recurring relational arrangement:
A social container is a recurring and recognisable social arrangement with enough continuity across people, place, time, practice, roles, norms, rituals or identity for social ties to have a chance to accumulate.
The phrase itself is not new, and I am not proposing a new social theory. I am using it as an applied unit of attention.
A school, sports club, recreation centre or neighbourhood can all be treated as broader settings. The social-container lens asks a narrower question: within or around that setting, where could the relationship we care about actually develop?
Sometimes it will be a team. Sometimes a smaller group within a programme. Sometimes it will include parents, coaches, volunteers or supporters. Sometimes it will emerge without a formal programme at all.
A venue is not automatically a social container. Neither is a programme. And community is a stronger claim again.
A team is one kind of social container. It is not the definition of one.
What carries the continuity?
The football story makes it tempting to equate continuity with keeping the same people together. That is too narrow.
Continuity can be carried by different things: people, place, time, practice, roles, rituals, norms and identity. Usually some combination.

This is why a porous arrangement like parkrun can still develop a recognisable social life, while a programme containing many of the same participants can weaken peer continuity if the pattern of interaction keeps changing.
It is also why every social container should not be designed for maximum stability. Some experiences need flexibility. Some need permeability. Some participants want familiar faces without strong obligations. Some social ambitions depend on relationships across groups rather than strong bonds within one.
The lesson from team-building is simpler:
Some outcomes only come into view when we pay attention to the relationships between people, not only to the people themselves.
What practitioners know, systems can still miss
Much of this will already feel intuitive to experienced coaches, programme leaders and community practitioners. In many places, it is. That is partly the point.
A coach may instinctively protect a familiar group. A coordinator may know that the half-hour after training matters. A club may understand the value of the person who remembers everyone's name. A volunteer may know exactly which newcomer needs introducing to whom.
What is intuitive in practice is not necessarily visible in the system.
If that knowledge lives mainly in the instincts and habits of good practitioners, it can be difficult to see in a programme specification, funding model, facility timetable or evaluation framework. And what is difficult to see is easier to trade away.
Making the relational layer explicit is not about replacing judgement with another framework. It gives the things good practitioners already notice a place in the decision.
The relational consequence is often hidden inside another decision
Sport programmes rarely optimise for one outcome. They may be trying to improve access, flexibility, skill development, performance, participant choice, safety, affordability, facility utilisation, coach capacity, reach and social value at the same time.
Sometimes those objectives reinforce one another. Sometimes they do not.
A flexible format may improve access while making recurring peer interaction less dependable. More precise skill grouping might improve development while disrupting established relationships. A talent pathway might create progression opportunities while repeatedly separating athletes from existing social groups.
The same tension appears in funding and infrastructure decisions. A large activation may reach far more people than a recurring programme while offering much less repeated interaction. A tightly programmed facility may maximise activity time while leaving nowhere for people to remain together before or afterwards.
None of those decisions announces itself as a decision about social connection.
Peer continuity can disappear inside a grouping decision. Informal social time can disappear inside a timetable. A familiar host can disappear inside a budget cut.
The relational consequence is often hidden inside a decision made for another reason.
That does not make the decision wrong. The social-container lens does not tell a designer which side of the trade-off to choose. It makes the relational consequence visible enough to become part of the choice.
Return to football. The useful question is not whether stable teams were better than the cohort model. We do not know.
It is what the new format was trying to improve, what became less dependable at the same time, and how much weight peer continuity should have received if friendship or belonging genuinely formed part of the purpose.
If friendship was not an objective, perhaps very little. If belonging sat prominently in the programme's theory of value, perhaps much more.
That is what changes when a social ambition moves from rhetoric into the design brief.
There is an important limit to the team analogy. Not every social ambition is about creating a highly bonded group.
Access and inclusion come first. People need to be able to enter an experience. Cost, transport, timing, equipment, registration, information and physical access all shape that opportunity. Entry is not enough either. People also need to be able to participate meaningfully once they arrive.
In What Connection Conceals, I used five dimensions to distinguish these different social jobs.

Source note: Bonding, bridging and linking draw on established social-capital literature, including Szreter and Woolcock (2004). The five-dimension framing used here is an HMR Sport Solutions synthesis.
The first two, accessibility and inclusion, concern conditions for participation. The remaining three, bonding, bridging and linking, concern relational ties.
An experience can be accessible and inclusive while producing little relational continuity. A diverse event can bring different groups into the same place without meaningful interaction crossing between them.
Bonding concerns whether people become known and supported within a group. Bridging concerns whether meaningful relationships form across a relevant social difference. Linking concerns whether people develop credible relationships with institutions, decision-makers, resources or opportunities.
They are different social jobs, not stages in a progression.
A highly stable group might generate strong bonding while becoming difficult for newcomers to penetrate. A diverse programme might create the possibility of bridging while giving people little reason to interact across difference. An institution can be present without creating a meaningful linking relationship if people have no credible route to influence, resources or response.
So greater connection is not the design brief.
A more specific social ambition is.
Once the social job is clear, the design questions become practical.
What are we actually trying to support, and for whom? What would need to change between whom? Where could that relationship plausibly form? What needs to remain dependable? What other objectives might strengthen or weaken those conditions? Who controls those choices? And what evidence would justify the claim?
I think these resolve into six questions:
1. Purpose and legitimacy
What social outcome are we trying to support, whose ambition is it, and do the people involved value it?
2. Relationship
What would need to change between whom for that outcome to become credible?
3. Relational setting
Where could that relationship plausibly form?
4. Conditions and mechanisms
What needs to be present, and through what process might the relationship develop?
5. Choices and responsibility
What else are we optimising, what might we weaken, and who controls the relevant choices?
6. Evidence and attribution
What would tell us the conditions existed, the relationship changed and any wider claim remained proportionate?
For programme designers, these questions can change choices about grouping, recurrence, hosting, roles, session structure and informal time. For funders, they can change what gets paid for.
Imagine, purely illustratively, choosing between two investments. One funds twelve one-off activations reaching 600 people. The other supports six recurring groups reaching 180.
If the purpose is exposure, the first may be excellent. If the purpose is dependable belonging, recurrence becomes much more relevant.
Reach alone cannot settle the decision when the purposes are different.
The same reasoning changes what counts as delivery. A budget may readily pay for equipment and court hire while treating the recurring host, an extra half-hour together, a shared room or continuity between programme cycles as overhead.
If those features are part of the proposed pathway to the social outcome, the funding model is shaping the relational environment whether it acknowledges it or not.
Commercial partners face the same test. A sponsor that wants to build “stronger communities” first needs to decide what that means: a community around the brand, stronger relationships within an existing community, new relationships between different groups, greater belonging for participants, or better relationships to institutions, mentors or opportunities.
Different claims imply different relationships. Different relationships imply different design.
The social promise should be specific enough to survive that translation.
Evaluate forwards
Design moves backwards from the ambition towards the things sport can actually shape. Evaluation moves in the other direction.

The temptation is to jump from participation to social value.
Do not skip the relational middle.
If stable peer contact was part of the proposed pathway, did participants actually experience it? If bridging was the ambition, did meaningful interaction occur across the relevant boundary? If linking was intended, did anything change on both sides of the relationship between people and the institution?
Only then should we ask what wider outcome can reasonably be claimed.
Relational outcomes are emergent. Friendship cannot be written into a delivery contract. Neither can trust or cohesion.
Sport can influence conditions. People interact within them. Relationships may or may not emerge. Those relationships may then contribute towards outcomes further away from the intervention.
Individual surveys remain useful. If someone reports stronger belonging, that tells us something meaningful about their experience. It does not, on its own, demonstrate that bridging occurred between groups, that an institution became more trusted or that a community became more cohesive.
Measure at the level of the relationship you claimed.
Success should follow purpose
None of this means every sport programme should become a community-building intervention.
Some experiences exist primarily to provide convenient activity. Some prioritise skill development. Some are performance environments. Some participants want a highly social experience; others do not.
Success should follow purpose.
A participation intervention may reasonably prioritise access and reach. A skill-development intervention may prioritise capability. A belonging intervention should be able to explain why its design gives people a credible opportunity to become known. A bridging intervention needs more than demographic diversity. A community-building intervention needs more than assembling people in one place.
The standard is not: did every programme maximise connection?
It is:
Was the social outcome clear, did the design plausibly support it alongside the programme's other priorities, and did the evidence match the claim?
Different kinds of sport can do different jobs. They should be clearer about which job they are claiming to do.
Beyond the container
There is a wider question sitting beyond this essay.
People move between schools, clubs, programmes, facilities, informal settings and institutions. Different social containers may do different jobs. Having a collection of them is not the same as having meaningful connections between them.
That raises another set of questions: which kinds of social opportunity exist, who can access them, what is missing, and what remains connected when people move?
Those questions deserve separate treatment.
For now, return to the footballer.
The system could see that she left football, moved to splash polo and remained active. A participant-centred conversation might have revealed that friendship mattered to her.
The relational lens adds another question:
If friendship mattered, what in the design gave it somewhere to form?
For the first two years, part of the answer appears to have been repeated time with familiar peers. In the third, that became less dependable.
And when she eventually found her way into another sport, the pathway was not only a programme pathway. It was relational.
A friend took her there.
The system records a change of sport. The story underneath is a relationship.
Sport already shapes those relationships. Its strategies increasingly make claims about their value.
The next question is whether those claims survive contact with design.
If the social outcome really matters, what would we design differently if we treated it that way?
Keep showing up,
Hamish
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