A counter point: in Sweden, where I live, tipping is optional. Many people tip 5-10% if they are satisfied, but service staff are not dependent on tips. While

A counter point: in Sweden, where I live, tipping is optional. Many people tip 5-10% if they are satisfied, but service staff are not dependent on tips. While service can be impersonal, it is usually without the kind of faults you point out. You can generally count on correct service.