The two folks who say that getting health insurance is not a problem are either in their twenties, live in a state that regulates health insurance in some special way (that they're obviously unaware of), or are lying.
I know this from personal experience shopping for health insurance. I have *very* good health, and it was still a problem, at age 42. And I still end up with a plan that essentially does nothing for me until I get cancer or get run over. (And ... not everyone can or should be expected to have zero doctor visits as I typically do. Not most women, for example.)
Not wanting to get injured is always a background worry - I no longer ride a bike, for instance, because the one mountain biking accident I had cost $5K+ in care (covered by big company insurance at the time), and around here getting hit by cars happens to a lot of road bikers. Is that what we want? A country afraid to ride bicycles because they can't afford the consequences?