It depends where you want to live, they get snow unlike anything in the uk and humidity unlike anything in the uk.
Somewhere with dry heat like California would be perfect for an outdoor lifestyle.
The other thing apart from the gun risk is that no one walks anywhere so you will have to drive everywhere all the time unless it's somewhere with a subway system. The buses only seem to get used by homeless people or dodgy types.
And most homes have guard dogs. Or every 2nd home. When I lived there my roommate got attacked badly getting out of the car by a neighbours guard dog that had escaped over the fence.
Also the street lighting in residential areas is rubbish so couldn't see the dog it's that poorly lit.
Healthcare/dental brilliant as long as you have everything included in your insurance and never have to call an ambulance.
Don't know about the schooling personally
Unless you ski/snowboard or do a sport or love watching sports there is no real culture sense of belonging to anything.
You can't drink more than 3 alcoholic drinks without someone mentioning aa, even if you are not driving. Lots of Americans are are health freaks or obese not just a size 12 and normal
You get amazing salad bars in nearly every restaurant
Normal sized cars are not really a thing they are all pick ups and mpvs everywhere. In some states children can drive at 13 which was so weird to see them at red lights in this massive truck but it's all automatic cars so easier to drive.
I would go and try it and see what you think, you can always come back again!