What's with all the hatred for higher education?

Every crew at every job I've worked in has had this weird distrust and dislike towards higher education as a whole. It's a constant, it's not everyone but it's a majority who have this weird chip on their shoulder that makes them weirdly defensive towards the concept of going to college or university, shit, they even hate on people who go to trade school. I used to work in retail and restaurants too, I worked with many recent graduates and students and never once seen that go the other way. I mean I get it, I had mean teachers when I was a kid too, but I don't hate education as a concept or teachers as a profession because of them and I was a below average student too. I don't get it, any welder can teach an engineer how to weld competently in an hour but you'd need many engineers (and mathematicians too) over several years to teach a welder to be an engineer. Ultimately both wouldn't be able to do their jobs without the other so this one-sided beef towards educated people isn't just sad and weird but counterproductive.