Great question. No one "wants" insurance. Everyone wants to be able to get covered for care. The problem is that Govt decided decades ago that Health Insurance is the only way to get care even for mundane things like a regular doctor visit. To make it worse, they tied it to Employers needing to provide insurance. Insurance companies love this bureaucracy and became too powerful over the last few decades.
It is a sad state and I have almost given up on the hope that someday it will change. I m lucky enough to afford healthcare and feel for those who can't.