... if you're making $250+k/yr as an individual in your 20s, yes. If you've just hit that at age 40+, maybe you're just looking at a comfortable 60-67ish retirement. The US medical system gives you exposure to well into the five figures of risk per year on top of at least high-four-figures in premiums per year (at age 50). Each extra year puts an early retirement without crazy money behind it at serious risk, because your expenses could suddenly and unavoidably shoot up by tens of thousands per year for several years on end.