because rich people dont want competition, so some fields are gatekept. like professorships, medical doctors, research scientists, probably admins that arnt acquired through nepotism. if have been a job forum alot of positions are taken by nepotism in general. research heavily gatekpt, by placing a arbitrary amount x years of experience in job listings even at the entry level. Also the top prestigious schools often breed elitist ass students too, they think they are entitled to certain jobs, or if they become professor, they think the way its taught should be higher than it would for that college.

some people are saying degrees are useless, they are if you are getting one without doing research on it before applying, thats on you. trades is not as easy to get in as you think, even if doesnt require it.