Just learned that a friend of mine always tips 10% on takeout. Ive never tipped on takeout unless they offered me a water/soda while I waited or something.
US biased, but I’m a little curious about other countries as well.
Then you should also campaign to get them better wages and to get rid of tipping, get to a better healthcare system to so the money they do get isn't sunk into that, as well as for doing something about crazy rents in some places.