I was thinking about that when I was dropping my 6 year old off at some hobbies earlier - it’s pretty much expected to have learned how to ride a bicycle before starting school, and it massively expands the area you can go to by yourself. When she went to school by bicycle she can easily make a detour via a shop to spend some pocket money before coming home, while by foot that’d be rather time consuming.
Quite a lot of friends from outside of Europe either can’t ride a bicycle, or were learning it as adult after moving here, though.
edit: the high number of replies mentioning “swimming” made me realize that I had that filed as a basic skill pretty much everybody has - probably due to swimming lessons being a mandatory part of school education here.
For the record, nobody ever offered me free drugs till I was in my 40s.
It all depends on the type of person. You’ll see if somebody would possibly be inclined to use drugs and become a potential client.
People stopped asking me if i sell drugs, around the time i turned 30.
Past two decades, my husband gets these offers any time his hair grows to chin length. But, yeah, not as a kid.