Would your parents be okay with this?

I'm 17 and my boyfriend is 20. How would your parents feel about that? Or if you're a parent, how would you feel? I have a pretty good relationship with my parents. They have typical expectations and aren't too restrictive. I'm not sure how this will go over, though. I am fairly responsible. I have a job and I make payments to my father for a car he bought me. I get great grades in school and have already been accepted into a really great college on a soccer scholarship. I don't get in trouble and I don't argue with my parents. There's only one way to find out of course, which is telling them which I plan to do tonight and then I will introduce him to them tomorrow. I'm just a bit nervous and would like some feedback.