Far too many people were told to go into debt and attend college and get that magic degree, only to find themselves in debt, and working jobs that either require no degree or do not line-up with the degree they got. Also, most people who went to college had the experience of being required to take a bunch of junk courses they had no interest in, and which were unrelated tho their majors, supposedly in the interest of becoming a "well-rounded" person - but are aware that many of these classes were more of a partisan indoctrination (politically or culturally) rather than being the traditional classical education stuff.
You can tell people all day long that they and their kids and grand kids all NEED those college degrees and all that debt, but as long as they see with their own eyes that this is not actually needed, large numbers of people will not buy-in.
Incidentally, before somebody replies critically, Yes I DID indeed serve my time in college, and I think it's highly important for people to do it IF THEY ARE TAKING THE RIGHT MAJOR FOR A GOOD CAREER. We NEED doctors and engineers and scientists etc with degrees, but we do NOT need carpenters, plumbers, store security people, baristas, etc with useless fluff degrees and so much debt they'll never be able to buy a house and live comfortably. If somebody is going to end-up in a blue collar career, they should not be wasting 4 years of their lives and going deeply into debt with college, and it's abusive to counsel them to the contrary. We sadly developed a system in which a lot of people have been told that blue collar jobs are awful and only stupid people do them, and this is wrong on both points.