You are absolutely right. It's a collective action problem in extremely large cohorts (regional/national populations). As such, it can probably only be realisti

You are absolutely right. It's a collective action problem in extremely large cohorts (regional/national populations). As such, it can probably only be realistically solved by legislation banning the practice. Individual action on the issue is ineffective and victimizes the wrong parties. The good news (?) is that tipping in the US has strange sociological effects that make it a good target for legislation. It has been found that various groups are more or less likely to A) leave a tip and B) receive a tip. That makes it pretty clearly a discriminatory practice.