but maybe I like it better if we never had any waiters or waitresses

1. I can find my own table
2. I can pickup my own food from the kitchen
3. I can pay as soon or as late as I want
4. Don't need to tip anyone

It will be like a fast food restaurant sure but just make the food better than that.

Also saves the restaurant money since apparently they can never seem to pay their servers a wage anyways and make them lean on customer's generosity.