I was never trying to justify the arrangement where the employer doesn’t pay the employee. However, the reality of the situation is that it doesn’t happen that way. In the U.S., at least, servers make their living almost exclusively by being tipped. Yeah, it’s shitty of employers not to offer a better wage, but it’s equally shitty for people to go to restaurants–fully aware that servers need tips to make ends meet–without tipping servers.