Finland. The environment is safe, and kids can roam free. We consider it as a fact that if a kid is above 7 they can manage by themselves a couple of hours without supervision. Including going to school, a visit to the near by store, a stroll in the park or woods and so on.
Having close connections to both countries, I can say that kids in Austria are definitely freer than in the UK.
For one, in Austria, kids have a legal right to go to school on their own, be it on foot or by public transport. A lot of parents do drive their kids to school, unfortunately even where it's really not necessary, but you do also see plenty of young kids walking there or home, or taking the bus or train. You definitely also see more kids "hanging out" in Austria - in the UK, everyone seems quick to jump to conclusions about gangs, so I guess "respectable" parents won't let their kids do that.
On the other hand, I felt I probably had even more freedom growing up in the 90s (in Austria) than many of today's kids. This is probably more of an individual choice of the parents (for some reason, people are afraid, despite this being one of the safest countries in the world) than direct societal pressure (being reported to the cops or social services, etc.) as it seems to be in the UK or US.
Yep, but still the amount of kids "roaming free" is far less what used to be (Italy here), in the old days (I am talking og the '70's) - with some due exceptions - after school we had lunch, spent maybe 1 hour doing homework and then (from the age of 6 or 7) "roamed free", usually on bycicles, till there was enough light (or the time was a quarter to 20:00, whatever came first).
A as a side note, most kids wore shorts until roughly 13, the long trousers were reserved to "official" occasions, holiday visits to relatives, (rare) lunches at the restaurants, and similar.
And it was not common to see a kid with both knees not-bruised or non-orange, a much used item was, besides hydrogen peroxide, mercurochrome.