This. Now you withdraw money at an ATM and it offers you to give a 25% tip. People who are not used to tips (i.e. foreigners visiting the US) don't necessarily

This. Now you withdraw money at an ATM and it offers you to give a 25% tip. People who are not used to tips (i.e. foreigners visiting the US) don't necessarily know when they should and when they shouldn't give a tip. When in doubt, should they or should they not tip 20%? The whole concept is just very weird.