It will all boil down to what kind of maintenance is required. A robot for $50k would pay for itself in saved wages in under a year, even less if it collected tips. A lot of smaller diners (Waffle/Huddle/Waddle/etc) typically have super low staffing requirements (line cook + 1 or 2 servers per shift, occasionally more) and could totally use robots due to the simple layout and standardization of the restaurants.
I’d say it depends, do you believe that you could live as a vegan? Not everyone can, and nothing is wrong with that. I view some animals as yummy and others as not, I’ve never tried eating an oat tree, but I’ll tear up some carrots.
I like the idea that consciousness is experienced by all living things and am totally okay with a certain amount of it ending during the natural progression of my life.