Intact families have no obligation to pay for children's post secondary costs. But separated parent's do... think about it for a minute...
I agree its not a natural situation. When we funded our childrens education they both had friends who could not attend University or college, as parents had not given them any assistance. On the other side of the spectrum one of my daughters friends had divorced parents and lacked for nothing. Never had to pay towards school. Her Mom just called up Dad and requested his portion of the expense, which apparently was high. It is sad, that there is a sense of entitlement being encouraged. My daughter ex has already informed her that he has no intention of paying for skiing, hockey or university which is kinda of funny, he is planning ahead, the child is only 2. So she knows it will be a battle and she hopes by then to be financially sound enough to assist him herself, and to encourage him to save and work to support some of his needs himself. In the end children are quite aware of their parents shortcomings, without the parents pointing them out. I guess the law seeks to level the playing field for children of separated parents, but in the end they may be causing greater damage by the resulting conflict, the development of entitlement by some and by damaging relationships of child and parent when one does not or will not or cannot pay and ends up in a court.