To formalize what other comments are saying, the current state is a Nash (dis-)equilibrium: no consumer can gain more by changing their own strategy if we hold all other consumer's strategies fixed.

Basically if you individually don't tip you're just hurting someone who's underpaid by the tipping culture system. I agree if _everyone_ stopped tipping simultaneously the system would become untenable and have to change, but it would be pretty painful for the workers involved in the interim.

Perhaps the only individual in the game who does have a positive incentive is the business owner, where going tip-free can gain a good rep among customers and get more business if viewed as ethical and stably priced. I've seen this grow a bit more common in California restaurants but it's certainly still rare. Most business owners would rather just participate in the dis-equilibrium and coast off the shadow subsidy.