Also, serious health problems before 40 are really rare.
It seems to me you are taking only maximum absolute dollar into account. 50k€ or less in Europe is more like $100k in my experience.
Assumptions:
- Comparing salaries in absolute dollar amount, without considering other costs from taxes, social security and cost of living.
- Education cost.
- Not falling sick, rare or not. Or needing an ambulance.
TLDR. The worst case in Europe is better than in the US. The best case in the US is better than in Europe.