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.
I’m from the US and moved to Germany. I’m still regularly surprised at how little Germans cook. Tbf, lunch is the big warm meal, so I get not cooking much during the week, but it’s very different from what I’m used to. Everyone seems to be surprised that Americans ime eat out less than Germans, so I don’t know if it’s just that I moved from a home cooking hotspot to a takeout hotspot.
German takeout doesn’t make me feel nearly as shit as American takeout though, so that might be the real answer