Most people I know got their first job at a fast food joint, where they were still under their parent’s health care. It was not a permanent venture as they went on to college or moved on to a better paying job. So, McDonalds could sell cheap food at a cheap price with cheap help. But, demanding 15 bucks an hour is just plain stupid. It would be like demanding a 2 dollar tip on every hamburg purchase.
Yes, that kind of request or demand is a golden goose killing one. Context matters too.