Sure. That might work, but the worker has zero control of implementing such a policy. They do have control over doing things that increase their tips. You work in the frameworks available to you, not some idealized version of the world.
We are arguing exactly against those frameworks, while your argument, while true, is only repeating that one can do well within that framework. I'm european and I find annoying the fake smiles, the fake chitchat and the deep cleavage I will get from a tips-motivated worker. Basically this softcore prostitution is the only way letting them get some bread on the table, within that framework you refuse to change. The manager definitely sees the unskilled bartender and could raise the pay of the skilled one any time, and if they don't notice the difference I believe the bar has bigger problems anyway. So no, it's not the only framework available, and the way it's slowly reaching nowadays europe because that "capitalism means individualism" is just garbage to me. We've always lived in tribes, only today's social media is spreading those lies for pure political power.
Tilting at windmills doesn't pay the bills.