Dual citizen here, that's precisely my plan. Just found out a couple weeks ago (from HN) how in the Netherlands and Germany you can request to work 4 days a week instead of 5, for 20% less gross pay, I guess its a smaller cut after taxes because you might drop down a tax bracket. As long as the company has 15+ employees. I partied a ton in my early twenties so I'm early in my career despite my age, but the plan is to live very frugally and buy several 2 family houses in low CoL areas to rent out. Then after 5 ish years depending on if I have a family or what, semi retire to Europe.