The reality is that many of these jobs rely on tips. If they were to "pay them a living wage" then the cost of the service would just go up.
Don't get me wrong, I want tipping to go away, and it's gotten absurd where people are asking for tips now. But it's absolutely stingy to not tip in these places where traditionally they would be tipped. If you don't want to tip, don't buy their services. It should be a recognized part of the cost: you just think it should be made official, some think it should be based on the quality of service they received.