First of all, let’s try to avoid American-bashing, and stay respectful to everyone.
I’ll start: for me it’s the tipping culture. Especially nowadays, with the recent post on !mildlyinfuriating@lemmy.world with the 40% tip, it just seems so weird to me to have to pay extra just so that menu prices can stay low.
The massive dependence on cars. I don’t understand why people put up with this nonsense. I just walk everywhere.
I read a travel guide to another European city I was visiting, and the guide was aimed at Americans. It’s a major really walkable city, with car access as good as nonexistent (wonderful). It surprised me, that some Americans walk so little, that the first advice in the guide was “start by trying to walk around your house”
Have you seen the size of America?
Europe is bigger than the US, but how often do you travel all across? The radius of movement might be a bit bigger in the US, due to bad design (urban sprawl). That’s a choice. You can plan cities better if you want to.
I don’t go from Sicily to Finland every week (but if i wanted to, I could easily do so by train). The size doesn’t matter in my daily life.