There's public and private healthcare insurance from what I remember, public is 14.6% of an employees gross salary, half paid by the employer. Everyone must have some form of health insurance by law. It seems to work very well. If on unemployment benefits you pay nothing
I'd love to know how the private insurance works. I hate the idea of the US system, where your cover can run out before your treatment has ended, and people have to pay massive "co-pays". And where people are trapped in jobs because their insurance is part of their employment package, and they've developed a condition that won't be covered if they have to switch to a new provider.
Medical bills were the biggest single cause of bankruptcy in the US, and may still be.
Do OAPs have to pay for private health insurance in Germany, too, OP?
That would be the bit that would worry me. I'm past retirement age, but still working. When I give up work, my income will be just above the level at which I would qualify for means-tested benefits. There's no way I could afford to pay for private health insurance, and probably wouldn't qualify for state help.
Having paid tax and NI for nearly 50 years, I'd be a bit resistant to having to fork out for health insurance now, when I'm most likely to need expensive treatment.