Medical doctors carefully regulate the number of new doctors to keep wages high. Its difficult to get into med school but when you graduate you'll likely get a medical doctor job.
Public school teachers do not regulate the number of new public school teachers at all, and as such the state U system in my state produces roughly twice as many ed degree holders as there are jobs. Assuming hiring system is perfect (which it is not, LOL) the bottom half of ed grads in my state have to find non educational work. Four years of "show up on time and do what you're told" makes them good waitresses and bartenders in my experience, but on a civilizational basis it seems an incredibly waste of money and talent.
can't wait for college to put out prospectuses that list out all the risk factors in dry and exhaustive detail (eg. https://personal.vanguard.com/pub/Pdf/p3141.pdf#page=4)
Beyond that, if schools put a big warning label on their recruiting materials that said "EVEN AFTER YOU SPEND $200K TO ATTEND YOU WILL LIKELY NOT BE ABLE TO FIND A HIGH PAYING JOB" then sure, that would be fine. But that's not what they do. They allude, if only vaguely, to the value of education to one's career. Many people have gone and gotten these useless (financially) degrees because they have misconceptions about what the result will be. As I said, hopefully the market is correcting that issue as people become more aware of what they're getting.
And hey, like I said, there are people who come from rich families or who get full scholarships, and the calculus is different for them. But for everyone else, it's one thing to value education for it's own sake, and it's another to value education at a cost of hundreds of thousands of dollars (not including the opportunity cost of not working for four years or the interest on the loans to pay those hundreds of thousands of dollars). College is a huge, huge investment of money, and while I definitely value education, I don't think there's a valid argument to be made that any soft education at a low-tier university is worth its price tag.