What's a skill that's taken for granted where you live, but is often missing in people moving there from abroad?
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.
In the UK I was given the option of German or French, but I wasn't taught very well, and could barely speak a few basic sentences after 5 years of schooling. If this is a common experience, as I believe it is, it results in a populace who speaks english only. (Obviously an issue exacerbated by the commonality of English on the internet and popular media)
It blows my mind how inefficient my school must have been. Right now, I can't imagine learning something for 5 years and retaining nothing.
I don't know that it's necessarily that it's "inefficient". Moreso that it's difficult for a language to actually stick and be useful if you're not immersing yourself in that language. You can go to class all you want, but if you're not trying to actively immerse yourself in it beyond class, you're not going to learn the language no matter how good the teacher is.
It's relatively "easy" to immerse yourself in English language content because English has sort of become the "lingua Franca" of the modern world. Something like Polish, for example, isn't.
I'm still not multilingual, but this concept made a lot more sense to me as to why I never retained my Spanish classes when I started learning programming. There's a huge difference between say, reading a book / watching guides / reading tutorials on a programming language (which by itself generally won't get you anywhere) vs actually following along, trying to make your own projects, etc.
How would a child do that, if no one in their community speaks the target language, outside of the ~90 minute class?
Well that's exactly my point. It's pretty "easy" to do it with English because there is so much English media to consume out there. A lot of shows and movies they want to watch are probably already in English. Their parents might speak English for work, etc. Less so with many other languages.
Same with French here in Canada. I took French for six years and I still don't speak it at all, and I actually did really well in my French classes.
I spent more time conjugating verbs than actually speaking it.
Yep. French Immersion was the way to go if you started in elementary school or had above average academic skills for late immersion. I'm still disappointed I had to stop when I moved and getting to the school with the program just wasn't feasible (had done two years of immersion prior). By the time I moved again it was Grade 10 and the presumed fluency was so high I would have struggled very badly.
Now the best option is dating a French girl, but my wife has reservations.
I took Spanish for three years here in the States. Most of the Spanish I know now I learned after high school. This seems to be a pretty common problem in nations with English as the official language...
Common for everybody learning a language in an educational institution without RL practice. Immersion, of course, is the best way to learn a language, - gives good results even if you didn't know it at all before being, eh, immersed.
It doesn't help that outside of school, you will never use that language. Even if you go abroad, everyone either wants to practice their English or thinks your French/German is so poor that they'd prefer to just speak English.
Thanks to events earlier last century pretty much everybody at least in Europe/Russia can speak a few basic sentences, and is often more than willing to demonstrate: "Haende hoch!" (hands up), "Nicht schiessen!" (don't shoot) and a few others.