I am gonna agree with Syringe...sorta.
First off if you were already dating someone in HS and then going to college it doesnt apply to you, what I think Syringer and what I am talking about is college guys, especially the older ones going for young HS girls, IE Freshmen and sopohmore. Again there are exceptions but a sopohmore or older in college (20+) going for young HS girls (15 or so) is a bit sketchy. I just skimmed this thread and while there are bigger age gaps in marriage or whatever someone was talking about, there is a huge maturity level from being 15 to 22. Then there then from 26-34.