Coll idea. One thing: This numbers exclude healthcare costs as you get older this gets more expensive.

For countries with free healthcare, it is usually limited to people working there or citizens and ( in the German case ) recognised refugees.

My health insurance (self employed, high CoL area USA, healthy/not old) is 6k$/yr. Kind of blows up that $18k/yr idea. I don't think it gets that much better if you live in a low CoL area.

For Portugal the "free" healthcare is extremely generous to anyone staying there, regardless if citizens or not. It does lose money, but then again Germany always pays the bill.

> One thing: This numbers exclude healthcare costs as you get older this gets more expensive

For the U.S., yes, I'm assuming Medicare/Medicaid. For overseas: Vietnam and Portugal have affordable systems you can pay into, with private insurance options above that at $1,200 and $5,000 a year.