That's not true. I'm almost 40, and excluding pensions and capital tied up in my home, I currently have around £500,000 in savings. This wasn't particularly difficult to achieve on a software engineer salary in Scotland; we've travelled the globe for several years, have a nice house, 2 cars etc. We absolutely plan on retiring at around 50 at latest. Now with 20 years' experience I make €65k/y from my day job as a software architect/tech lead/lead dev (working 30h in a 4-day week). My wife and I also run a B2B micro-ISV that's made around €100k/y for the past few years (it was a slow climb to that figure over 10 years).
So, we have a household income of around €165k (~$200k) - certainly more than most in the UK, yet nowhere near what I could make in SV on my own - and still certainly enough money that we hardly need to think about it, and with considered financial planning we can easily retire early.
I'd far prefer to live in Europe than the US - I work way less hours, I get way more vacation days, our healthcare system won't bankrupt us (unfortunately I know firsthand it's far from perfect, but it's definitely still a boon for society), losing my job at any point in my career wouldn't have me out on the street, I don't need to especially fear the police, and (in general) people have a progressive attitude that serves to benefit all of society.