Being able to go basically anywhere by bike, foot, or public transport. And just our bike infrastructure in general. I honestly don't know how I could live in most other countries because it seems like basically everything happens by car or foot. Being able to bike anywhere is so much nicer and gives a lot of freedom from an early age.
Strangely we Dutch people also seem to be quite alone in our view that helmets on normal bikes are not really necessary. They make bikes more prevalent imo, because you don't have to drag a helmet along everywhere. You just park you bike and the only thing you have with you because of it is a key, no special clothes, helmets, etc. I think that's also possible because of our bicycle infrastructure and culture.
Kids learn to bike from a young age, in traffic. You see very young kids just cycle on their smol little bike with a parent on the outside sort of shielding them from traffic. Safely on bike roads, but also just on shared roads with cars. In general kids are quite free to just play outside. I live close to a school and I see plenty of kids all across the neighborhood, just playing without parental supervision. It's what we did back in the day too, without mobile phones or anything. We'd usually be home on time for dinner or our parents would find us somewhere in the neighborhood and tell us it was time to get home.
I have this with lots of other things currently. Whenever I cannot do one of my hobbies, I will fantasize about them and come up with all kinds of ideas of what to do, but when the time comes to do them I just cannot get going and sometimes even get stressed. My brain would rather just stare at YouTube videos all day. I believe it's our dopamine systems being completely fried due to all the easily accessible instant gratification online.
I recently read a book again for the first time in years, Dune, and I was struggling so hard in the beginning. My brain just wanted to scroll. I enjoyed the book, but nevertheless my brain wanted instant gratification and I had to resist the urge to grab my phone while reading the book. Luckily this subsided after getting a bit further.
I don't often have this for games yet luckily. I'm currently absorbed in Hades II and no amount of brain rot can get me out of it. But it's one of the last sacred places, and even gaming sometimes suffers this fate. There are so many gun things to do that it's just overwhelming, whenever you do something your brain always has something else it wants to do more. Not because it actually wants it, but just because it likes the idea of it. As a kid I didn't have all this stuff, and didn't experience all these things, so everything I did felt special.