I work a job that can be taught to most people. Although you do need to be strong and be ok with a lot of travel. General dexterity and familiarity with hand tools helps immensely. I am also a college dropout. I have had very few of my trainees fail to last at least a year. I am so much, almost infinitely better at it than a new hire though.
The other part of my argument here is I coordinate constantly with people who have multiple certifications all the way up to advanced degrees. Every single one of them I've spoken to about it says that their work is roughly 90% learned on the job. To me this makes the certifications and degrees they earned 90% worthless, except that education got their foot in the door to actually learn the job.
We need an overhaul in the way we think about qualifications for jobs. I think college education is a wonderful thing that generally creates a more well rounded individual, and I am grateful that I was able to spend a few years doing it. But pushing people into massive debt so they have a chance to get their foot in the door for a better paycheck is fucking insane.