i really don't see why this is a problem unless you literally have 3 days to live.
but then if you're very worried about getting in a bad car wreck, and it keeps you up at night, you're probably going to get insurance anyway. for me, it's a statistically insignificant worry. yes it's a worry. getting blown up by a terrorist attack while flying on a plane is a worry. a meteor hitting the earth is a worry too. but am i going to insure myself for it? no. paying too much for statistically unlikely events is just a bad decision. at some point, i made peace with the fact that sometimes bad shit will happen in life, and i can't cover all the bases.
On a micro level, that's fine. Individuals can take the risk, but we aren't living on islands here. If many people do this, at least some of them are going to get sick/hurt. And they'll get very sick or hurt. A car accident, long term illness, cancer, etc. all cost a lot of money to take care of. *Caveat: I don't know if we can make it all much cheaper; if we can, great, but it's not a point I'm prepared to address at the moment.*
And when you or those people do get hurt (or say you get hurt, break a bone, get pneumonia, get cancer, etc.) I guarantee you're going to go to a hospital and expect treatment. No one 'takes the chance' and doesn't get insurance and then, when they need medical attention says 'oh well, I took a shot and missed, guess I'll just hope I get better on my own'.
I'll give you an example
That's a great example of the existing problems with the foundations of the system the USA is using. Of course, I don't have a solution.
From what I understand, the Affordable Care Act (ACA) has some kind of income-based tier system tied to the insurance mandate which helps subsidize insurance for individuals who don't qualify for Medicare/Medicaid but are still living on a fixed or low income. In theory, requiring everyone to participate should spread the overall cost of the system to a manageable level but we're still dealing with increasing costs of procedures and insurance companies themselves are for-profit business, so who knows?
Regardless - we're living in an interesting and exciting time. It's hard to discuss these things in a grounded, sane way with people. Thanks .