I remember when Uber first came to Austin, one of the big draws was that a tip wasn't expected. The app didn't even allow it IIRC and Uber sort of advertised this as a feature. 15 years later, back to it, tips seem expected again?

Oddly enough, the fact that I was initially sold a product where a tip wasn't expected has made me continue to not tip Uber drivers. Not sure what that says about me.