Teenagers are the group cities design out first

There is a short answer about teenagers in public space and a useful one, and they are not the same. What follows is the useful one.

The provision gap is structural

Playgrounds are equipped for young children, and facilities for adults are largely commercial and require money to enter. People between roughly eleven and eighteen have limited money, limited private space at home and a strong need to socialise unsupervised.

Public space is the only affordable option available to them, which is why they use it intensively. Cities that provide nothing for this group have not removed the need; they have removed the accommodation of it.

Presence is read as threat

Research on perceptions of public space consistently finds that groups of young people are described as intimidating in the absence of any specific behaviour. The perception is strongest among older residents and is reinforced by media framing of youth gathering as antisocial. Complaints then generate a response, and the response is usually removal of whatever they were using.

Measured properly, this converts a perception into a physical change to the city.

Deterrents move the problem

Removing benches, playing deterrent sounds, installing sloped surfaces and restricting access disperse a group to the next location. The next location is usually less overlooked, which makes any actual problem harder to see and to address. Devices audible only to younger people have been used in several countries and have attracted objections on rights and health grounds.

Displacement is presented as a solution because the measurement stops at the original site.

What works is provision, not prohibition

Ball courts, seating that accommodates groups, shelter, lighting, power sockets and somewhere to be that is neither a shop nor a playground meet the actual need. Youth facilities with staff are more effective again and are exactly the discretionary services cut in austerity budgets. Involving young people in designing these spaces produces better-used facilities, which is well documented across many participation projects.

The evidence base is thinner than it should be because these interventions are rarely evaluated properly.

Girls are provided for far worse

Audits of youth facilities have repeatedly found that provision oriented around ball courts and skate parks is used overwhelmingly by boys. Design responses include multiple smaller social spaces, seating arranged for conversation, better lighting and clear sightlines rather than a single dominant facility. Several cities have run gender audits of youth space and redesigned accordingly, and the reported results have been encouraging.

The general point is that a single facility type serves a single group, whatever the sign on the gate says.

The data here is patchy — most cities do not publish it consistently.

The cost of exclusion is deferred

Young people excluded from public space spend more time indoors, get less incidental physical activity and have fewer unsupervised social encounters. The health and development consequences of that are hard to measure and are widely believed to be significant. They also learn early that the public realm is not for them, which is a durable attitude to acquire.

A city that cannot accommodate its teenagers has a design problem, not a behaviour problem.

The takeaway

If there is nowhere for teenagers to be, they will be somewhere you did not plan for.

The design decision is visible long after the people who made it have gone.