Look, the Cambridge English Dictionary definition of a tip:A current tip actually isn't a subsidy. It encourages people that otherwise wouldn't get into or stay in the profession to do so. Because providing excellent service will result in greater monetary reward than what a higher established hourly wage would. The higher hourly wage is actually the subsidy because it subsidizes poor service. Their is no reward for quality service because you are going to get paid the same as the person busting their but to deliver quality service.
Look, if you don't want to reward bad service while still not denying a server some sort of decent hourly wage just tip 10% to 15%. I always tip at least 15% no matter how bad the service because I worked in the industry and know even the best servers can have a bad hour or two. But I am a really generous tipper when I get good service and I worked in the industry at one point. It shouldn't be expected for others to tip like I do.
If you get bad service on a meal where a tip percentage higher than what you think is deserved is automatically added to your bill, ask to speak to manager before you pay your bill. Most places will adjust the charge to what you believe is appropriate for the service.
The sad fact is if you go to the higher hourly wage to replace tipping, tipping is going to basically disappear for quality service. In almost every restaurant where prices have been raised to support a higher hourly wage, servers have been banned by the employer from accepting any tip. If a customer still leaves a tip on the table the money must go to a charity if the customer refuses the return of the money. So good servers have had to take a huge pay cut and have been leaving the business in areas where local ordinances have required that servers be paid a full minimum wage amount.
“to give someone who has provided you with a service an extra amount of money to thank them”
It works outside of the US. It’s not my fault your system is flawed.The sad fact is if you go to the higher hourly wage to replace tipping, tipping is going to basically disappear for quality service.