No society wouldn't collapse with a minimum wage, that is not my argument. Logic would dictate that if everyone in a town was making $15 an hour then prices would naturally increase. How can you not see this?
Yes, I live in Switzerland.
Is it more expensive to go to a restaurant than in America? Yes, sure, but at least the people working there can have a good quality of life and don't rely on tips to pay rent. Prices of things that involve service are higher, true, but wages are good enough here that you can still live really well.
Maybe the average person can't afford to eat out every day of the week, but should they be able to? I feel like this is only possible if you underpay service staff.