I'm a British-American hardware engineer, I've lived in the UK nearly all my life. I've a home, and a family with kids here, I'm very settled. I've had plenty opportunity to move to the US, even before I had a family (with my current employer or under my own steam as a citizen) and I've no interest. I visit the US every few years and by the end of the trip I'm very much done with it all. Other than the much larger job market, I don't think there's a single US thing I want. Everything we have here is either better, or I'm sufficiently used to it. American is an unappealing place to live for many social reasons, I'd much rather move to France or Germany if I had to leave (and wasn't worried about the language barriers).