In a free economy, a company would notice that, say, 2% of people get appendicitis in their lifetimes and that it costs $50,000 to treat - an expected cost of $1,000. Then they would offer you lifetime appendix insurance for $1,500.
Unfortunately there are tens of thousands of pages of regulation preventing that from happening.
The "it can't happen to me" syndrome would likely stop anyone buying anything so specialized as appendicitis insurance. If you tried selling that to me 10 days ago I would have shrugged it off as unnecessary.
But something does need to give or at least should. The system is so broken and involves such huge amounts of money that whoever figures out even a small piece of this will become a billionaire many times over. I'm open to ideas if you need a cofounder ;)
Unfortunately there are tens of thousands of pages of regulation preventing that from happening.