No I am addressing the part of what you posted that I wanted to address. You talked about two things in the post I responded to. Now as far as student debt is concerned. Education benefits the entire society. You already pay for someone else's primary education through the public K -12 education system. So to claim otherwise is simply not true.
But that system only provide us with people who can read and write. If we want scientist, doctors, lawyers, engineers, and people to continue to educating future generations, and so on, higher education is an investment in people to carry out the higher functions in society beyond people who can just read and write. And those people are also a benefit to you and society.
So if you need a reason to justify paying student debt and continuing education I just gave you one, because these are the people you depend on for a higher functioning society.