Since “skill” has figured in this thread, may I add a couple of thoughts on the subject?
Many jobs require considerable skill that does not count as skill because many people have the skill. Driving a car reasonably well takes a huge amount of skill and carries major consequences if it is not done well, but no one gets paid extra just for having a driver’s license, because lots of people have a driver’s license. It doesn’t count as a skill, just a credential.
A better example might be logging. It takes a lot of skill to cut trees quickly and safely. But 125 years ago, logging was considered and paid as unskilled work because an awful lot of male immigrants came to North America from farms, where they had learned to cut trees. “Anybody” could do the job because many men already had the training and skill. Ditto women in domestic service and textile work.
Much “skill” is gendered. Carpenters? Mostly male, skilled. Seamstresses? Mostly women, unskilled. Ditto with much work being racialized.
Many “skilled” jobs didn’t require much real skill, if by that we mean in part exercising independent judgement. Railway engineers don’t even have to steer, but they were highly paid largely to faithfully observe all the rules so the trains stayed on the tracks.
Skills you have and take for granted may not seem like skills to you: lucky you! That doesn’t mean the job does not take skill. I was told by one boss, “any idiot can do this job.” Well,this idiot couldn’t, so I got a PhD instead.
Smapti outlined some of the tasks required in fast food work, and while some people may master them quickly, that is often the result of innate talent or adjacent training. Love to play sports? You may have the needed proprioception to maneuver adroitly in the hot, cramped, crowded fast food place. Lucky you!
Emotional labour in particular takes all kinds of skill that is rarely recognized and paid as such. “We hire people who are people people” is a recognition of “personality,” and the ability to fake sincerity: skills many can learn and some are “born” with and so seem “natural,” but they are hard for many to master.
Car assembly line work may be considered “unskilled,” but the UAW insisted workers deserved high salaries because the jobs were shitty. Makes sense to me. Ditto fast foods.
Finally, the “law of supply and demand” isn’t like the law of gravity or even one of the commandments. It is simply a decision to allow certain kinds of behavior, such as “giving” a job to the lowest bidder or selling your commodity to the highest bidder. Many societies would beat the heck out of somebody who pulled that shit. It’s a “law” in the economy most of us live in, so common we think it reflects “human nature,” but there is nothing inevitable or eternal about it. As many in this thread have recognized, we can do better.
Just my unskilled two cents’ worth.