Dads are worse than moms in this respect because dads are MEN and they know what teenage boys are like. Sorry if I offend, but let's be realistic. What is on a 17 year old boy's mind 23 out of 24 hours a day? A dad is just trying to protect their daughter from the consequences many young girls are going through right now: unwanted pregnancy, STD's, ruining of their reputation, etc. Love your dad for caring about you.
All men are dogs. You're his baby girl, daddy's girl. He remembers all to well the things he did to other fathers daughters. Which of course was a blast, sneaking out of the house, heading out to the local lake to watch the submarine races, fumbling through his wallet, debating which water balloon would be better. He looks back now & thinks oh my God, those girls were babies, what was I doing---well not my daughter. It'll happen anyway, but as a parent we love floating down the river of de-Nile
You will never get it until you are a parent yourself. You think you know what love is but you don't until you hold your own child in your arms. When you get older your dad will not be as he is right now. Family is everything talk to him.