#1 - Did you somehow entirely miss the part that the nephews older brother - in the same generation with the exact same upbringing - is doing fine?
They don't have the exact same upbringing, in particular first and second siblings are typically treated differently in a number of ways. They also are not the same person, and different people are able to take advantage of different opportunities for multiple reasons — not all people have the preparation to take the same opportunities, and not all people will have the same opportunities handed to them. So no, you are factually incorrect, they did not have the exact same upbringing, and even if they did that would only be partially relevant.
Logic, you fail it.
If you think the government paid 70% of your tuition 30 years ago - I have a bridge to sell you. It simply didn't work that way, ever. In fact, most people in the 90's and 00's worked their way through school.
Oh look, more clown shit. The government provided more funding to those schools instead of offering predatory loans directly to students, so the tuition was a lot cheaper for the student, because so much of the cost was paid before they were billed.
You fail at facts, too.