If the purpose is to learn, you can do it better with YouTube and AI. If the purpose is to have fun, socialize and network, that is better done elsewhere, doing sports or other hobbies with other people. If it's babysitting you need, there are cheaper, better and more fun ways for the kids to spend their days. If the purpose is to learn a job, again, education is a terribly wasteful way of achieving that.
Then there's the fact that we'll all soon have to come to terms with, which is that most people are already barely able to contribute value to a white collar job, and in 20 years I'm pretty sure that number will be down 99%.