When I was a kid I worked at a couple of McDonald's and a
BK..after that experience I would NEVER EVER eat at one of these places again, and I haven't for three decades. I doubt that the attitude of the [censored] poor low paid employees has changed and the pay is as bad as it ever was when accounting for inflation it is even worse today than in 1981.
The employees don't care about their jobs, or the customers, and that affects how they handle your food too!
Sure you can get rid of the cashier at the counter, but some underpaid uncaring drone still has to make that burger, or pizza.