Two issues - term time and vacations.
Term time , the father needs to pay the student directly.
Vacation time - I’m assuming that the student lives with the father 50% of the time. If not, then he needs to give money to the mother to support the student during holidays.
Even parents who can’t afford to support their child at uni usually feed and house then during vacations. It doesn’t say much for the father if he’s not even willing to do that.
My DD is a uni student and has friends in this position ie dad doesn’t give them anything at all, even though he can afford to , because he’s not compelled in law. These kids all hate their dads, they are not stupid, they can see that mum supports them while dad acts like a big shot with a hundred quid for Christmas but nothing the other 51 weeks.
One has stopped seeing her dad at all because of his selfishness. He thinks he punishing his ex by refusing to support the child but he’s poisoned his relationship with his DD.
He’s a partner in a law firm and thought he was smart, getting a divorce settlement that stopped child support at 18. Yeah he’s kept the money but he’s lost his oldest child and the youngest will probably do the same when she’s older.