Factors that aren’t relevant? And how are teachers and garbage men not in the service industry? They serve you and your kids every day. There are so many folks out there that work there tail off every day to serve others just as hard as the peopleIt only gets complicated if you start considering factors that aren't relevant. Teachers and garbage men are not in the service industry, nor is their industry's compensation scheme predicated upon a portion of their income coming from tips.
In the “service industry” and they don’t get a minimum of a 10% tip. Everyone has a choice and in the day and age of equal opportunity, me too, black lives, etc, etc. why should we tip one person over the other?