> Tips subsidize profits, plain and simple.

Nah. Profitability for the business would be higher without tips. I take x% of gross income as profit. No tips means I can charge the customer more, which means a higher gross income, which means more profit. When tipping is involved, the money slips through without allowing the business to take its cut. Good for the server, but not good for the business.

However, as theoretically great as it sounds, you are ultimately beholden to what the customer wants. There is good reason why every restaurant that has tried a "no tips" policy has failed. Nobody shows up to dine. They go somewhere else where they can tip instead. Regular people actually enjoy tipping, as hard as it may be to believe for those who are staring at screens rather than enjoying the ambiance of a restaurant.