What you mean? The rest of the world runs without tips. What is discriminative is to leave the margins up to random customers picks. Instead there should be Ube

What you mean? The rest of the world runs without tips. What is discriminative is to leave the margins up to random customers picks. Instead there should be Uber prices for the driver that are fair, and no tip should be asked, so every driver knows beforehand what they are going to earn and if it is too low there will be very little incentive to apply as a driver. And Uber instead of correcting the fact people don't tip will just set a different price per km or whatever.