As I see it, VSU forces the Unions and the Universities to adopt a model similar to that in shopping centres. We don't pay for the privilege to use a shopping centre - there are plenty of free things that are available at Westfields or Centro or Stockland etc.
Yes, it might be more difficult for students with children to attend university. But as far as I'm concerned, they are in a much better financial position than parents who can't attend university because they have to earn money to feed their kids. Further, for the majority of universities, childcare services are impractical anyway since the Union does not fund childcare services at Every campus where there are students. One of my classmates at the Con just had a child, and she does not have access to the Union childcare she (and the rest of us) pays for.
Unfortunately, universities are very likely to cave into demands for a "fully-funded SRC" and a "fully-funded Union", and that funding will be taken from our classrooms and libraries. At USYD, the SRC received a guarantee for funding post-VSU, and I am disgusted by the fact that now we cannot even conscientiously object - the fees will be paid to the SRC whether or not we choose.