There is no need to imagine that. It depends on the country, and your insurance. I've experienced it, not personally, because no need so far (phew!). But when I

There is no need to imagine that. It depends on the country, and your insurance. I've experienced it, not personally, because no need so far (phew!). But when I grew up that was free, for all. Like glasses, too. Still don't really care, because now it would be covered by my private insurance. If not they'd get sued into oblivion really fast, even if I would be incapacitated somehow.