So how much would this cost? Not that much:
Fee-free study would cost $568 million, and the implementation of a universal student allowance would cost $570m.
(Debt relief could cost a lot more, but it all depends on the book-value of debt that will never be repaid)
Which is less than National wants to give away in tax cuts, and less than Labour gave away in 2008. It won't break the bank to do it; the question, as always, is one of priorities. I can understand putting it behind child poverty (because that really is the moral challenge of our time), but behind forking money over to the rich? I would rather have a fully funded public education (and health, and welfare) system than give a single cent to them.