The transition out of school removes a lot of structure at once: a fixed timetable, a familiar peer group, adults who track how you are doing. What replaces it varies enormously — and the environment someone lands in during those first eighteen months has an outsized effect on how the rest goes.
That is why U4S writes about social environment as directly as it writes about accommodation or budgeting. Peer pressure, drift, unfamiliar attitudes to alcohol, "easy money" offers that turn out to be someone else's risk, and the pull of an online world that rewards the loudest version of any opinion are all part of the same picture. The aim is not to lecture anyone. It is to describe how these situations usually present themselves, so they are easier to recognise from the inside.