General thoughts on parents paying for college?

We planned and can afford to pay for our S’s college and hopefully most of his vet school. We gave up certain things to make sure we had the money to help our kids like our parents helped us. Our D has chosen not to accept our help. S really appreciates it. He got scholarships to make an OOS flagship the cost of an instate. We are happy to help him. He has already worked hard and has a good savings account he says he is saving up for his first car of a house downpayment some day. I’d like him to be able to save that money. We didn’t do it because he asked. It was our choice!