The risk mitigation is insurance. Yes, in the USA it is expensive and a pain (and it varies a lot by geographic area.) But since the ACA went into effect, you C

The risk mitigation is insurance. Yes, in the USA it is expensive and a pain (and it varies a lot by geographic area.) But since the ACA went into effect, you CAN obtain insurance if you are sick, and it will be subsidized if your income drops below a certain threshold. It isn't like the pre-ACA days where you often could not get insurance for any price if you were sick and/or unemployed. That is the situation you are worried about, and it has been mitigated to a large extent if you keep your insurance coverage up to date, before you can get the USA's socialized health care, which is just for those over 65. Moving to another country may have other health benefits (life expectancy is better for all income levels in the EU, for instance) but overall income vs. expenses may not change much - it sometimes just feels worse in the US because staying insured is more DIY. Salaries can be quite a bit higher in the US, which may more than offset the difference (of course depends on the situation...)