[snowwrestler]

Employees like tipping because it gives them greater control over their earnings. If they handle customers efficiently, if they sell hard, they can make more money. And they can take it home that day if they are receiving tips in cash.

And business owners like tipping because it aligns the employees' interests with their own: bringing in as much revenue as possible.

There are U.S. food service jobs without tipping, for example fast food chains or school cafeteria workers. Do these folks have higher pay as a result? Generally no.