Following on from a sibling comment: it's in society's interests to help parents to pay for their children. Not just because those children will be working to look after and provide for the older generation in retirement, but because the better educated they are, the more able they'll be at doing that.

Everyone should be happy to pay for schools because everyone benefits from being able to be paid a pension. And being able to spend the money they get from their pension on useful things, like food.