Example from Germany:

I pay 860€ per month for health insurance, which covers me, my wife, and our two children. There’s no deductible. Everything is covered, except for tooth replacements that are covered only at between 20% and 50% I believe. You’ll never get a bill from a doctor or hospital in Germany, except for those tooth replacements.

The most I’ll pay is a small copay for drugs, usually about 5€, but only for adults — drugs for kids are covered 100%.

Probably a bit simplified, but the above has been my experience so far (I’m 40).