We could probably argue about "living wage" of a supermarket cashier. Here they all, at least, make minimum wage. So tipping cashiers should be equally fine as tipping waiters.

Yes, the system is bad. Not the customer that don't wanna tip. If 100% would not tip, the system HAS to change as noone would work as a waiter anymore. Doesn't happen, so no change will ever happen. Except maybe paying them even less coz the customers compensate it willingly. Not ideal too, yes. Hence i would stop eating outside if i would live in such a system.

Yes. Sure. But obviously it works great, so where's the need for change? People still wanna work waiting and people still tip. And considering you guys vote billionaires for your representative, it's all working as intended. There's even wiggle-room to milk you for even more... But i would hope for u guys that there ever will be some good change.