I've been trying to move for over a year now. My fiance just doesn't want to. She wants the kids to go to this small town school where (it seems) really safe, and I don't blame her on that one. If I did move, I fear I would lose my focus so that's another thought that sticks out. I got kind of a popular status around here to so I think I would miss the flattery
In NYC it's a bit different, but I'm very impressed with how my sister has done with her children in Silt, Colorado USA. Yeah, it's called "Silt". Anyway, they live out in the middle of nowhere with very small towns here and there.
I think what really made the difference for the kids was having to spend a year abroad beginning at age 15 or 16. That year made all the difference in their ability to navigate small town life, country life, city life, other cultures and languages ... and everything that falls between.
The US is geographically very large, so the danger is comfort in homogeneity--not being exposed to other ideas, cultures or issues other than those with which you are closely familiar.
US citizens, by and large, don't travel much outside of their comfort zone. Such isolation can breed a very distorted world view, in my opinion.
So, how is the USA? Well, depending upon from where and what you are leaving, it's a very open-ended question.
Best,
Sine
PS. I wouldn't give up my small town childhood & education for anything.