Do I understand correctly that you're making the argument that education is zero-sum? That's surprising to me, I feel like I have gotten a lot out of my education. In fact I would say that while most people agree that education system isnt perfect, we do gain quite a lot from a society where for example as a baseline everyone can read and write, and at a more advanced level understand at least the basics of other people's jobs.

At a university level, I can't say I have studied every course or "type" of education, but it would be really surprising to me if there were any that gave nothing at all to their students