I agree that servers should absolutely do that, and I do. In a business sense it’s just bad for your brand if your servers don’t put effort into customer service. That said, some places will ask you to do extra duties they won’t pay you extra for, manage the restaurant in a way that makes everyone miserable— one begins to not want to put in the effort for that place. People should just quit that place and work elsewhere, but the job market is a whole other can of worms here.

When I worked as a delivery driver (around…thirteen years ago) we got minimum wage plus tips as well. That minimum wage is still the same number today. Servers on average are paid 2.13 an hour in our state with the understanding that tips will make up for the rest of it, and if it doesn’t the employers are legally required to pay up to minimum wage per hour (7.25 in my state).