I've never been to USA, much less lived there, but one huge difference I've noticed from listening to my American friends describe the lives of themselves and their neighbours is that they all (slight exaggeration) have cars and pets, work 2 hours away from home so they must hire pet-sitters, spend more time mowing the lawn than sitting in their gardens and enjoying it, and seldom can do anything alone, just for its own sake. Stay home alone and read a book instead of go out for dinner with friends? Nope, they listen to audiobooks while commuting instead, and go to a book club meeting on the weekend to discuss the book. Watch a movie on Netflix? Not without joining a Facebook group to talk about it in.
But maybe that's just me getting hung up on things I'd rather not do at all!
!LOLZ
RE: Expat Dane in the US... Reflection on Most Noticeable Differences