I don't think he has his head in the sand, and I do believe he knows his daughter better than you can imagine. My sister was the cut of the same cloth. You can suggest otherwise, of course, but you're in no position to know the truth. Truth based on statistics are a poor way to judge in individual cases.
Thoe only parents who are actually fooled or shocked by their children’s behavior are those parents who are in selfcongratulatory denial.
The best cover for a child is to be a goody-two shoes.
If an older teenage girl decides to have sex (or almost sex!) then she will and there is nothing that parents can do about it short of imprisonment.
Some of y’all seem to think that everything your kids do is a direct reflection on you as parents which means that you don’t give your kids credit for having any decision making abilities at all or for being accountable.
I’m sure that there are many girls who graduate high school and even college as virgins.
But really, so what?
How many guys are really so shallow that they would only consider dating or marrying a virgin?