Also, many Europeans have the "equal work, equal pay" mantra drilled into them. Tip-based salaries are the complete anti-thesis to that. It is obvious that better-looking younger women get more tips than those without those characteristics. It rubs me and many others the wrong way; hence, I never tip because that is always fair. As a customer I 100% prefer "worse" service over having to deal with the tipping BS. Americans don't care and don't think about fairness at all in the same way.