I typically pay six bucks for a burger, fries, and a Coke.<quoted text>
How much more would YOU be prepared to pay (in dollars and cents) for a cheeseburger and fries?
There are NO cooks in fast food ops. They push a button on a microwave (in case you never noticed), and they have computerized cash registers.
The only "service" by the customer service personnel is to say, "It's at the end of the corridor on the right".
And the fast food restaurants that I prefer do have cooks, and they have flame broilers. I prefer Carl's Jr. And I have a neighbor who works at the local Carl's Jr, she is a very nice lady, she and her roommates are all nice people.
And when you deal with the customers, then that is customer service.
Cooking, and customer service, are jobs which must pay more than the janitors make, because they require more abilities than what it takes to be a janitor.