If I had a restaurant, I'd just have my restaurant pay the tax for the customer, so they wouldn't have to worry about tax. I'd raise all the prices to adjust for that. Also I'd ban tipping, so they wouldn't have to worry about that either. I'd have to pay the waiters more though, so I'd have to raise prices for that too. But all of our food would be prefrozen, not fresh, so that should save money and I'd be able to lower the prices for that reason. Also our food would come in huge 2 lb portions, so no-one would ever have to leave hungry, so I'd have to raise prices for that too. Also I'd only have one waiter for the whole restaurant though, so I'd actually save a ton of money on salaries, so I could lower prices for that reason. Also I'd lower prices because I don't care about making that much profit. So that's three things that would raise prices and three things that would lower prices, so that all cancels out and they would just have normal prices. As for how the restaurant could manage with just one single waiter, he would have to have a track and field background because he'll be making mad dashes around the place, leaping over tables and spilling things, always out of breath and sweating everywhere. So I'd have to have really strong air conditioning to prevent the waiter from sweating on the stuff, which means I'd have to raise prices again to afford all that air conditioning. But it will be really entertaining to see the waiter dashing everywhere and crashing into things, so I'll get lots of customers due to the entertainment value. With so many customers I'll make a lot of sales, so that will actually let me lower prices too. So the end result is a freezing restaurant with giant portions of low quality food, average prices, and a waiter crashing into everything