I don't always tip, but sometimes you meet a driver who deserves a tip or seems like they might need it and it's good to have the option to do that without usin

I don't always tip, but sometimes you meet a driver who deserves a tip or seems like they might need it and it's good to have the option to do that without using cash. The tip is entirely optional and $0 by default so there is really no downside to offering this option, even for people who will never use it.