There's another thing to consider about pushing your kids into community college at age 16: they'll be dealing with older and more mature kids. They'll be dating older and mature kids. Food for thought. If your 16 year old daughter thinks she's facing pressure to have sex by high school boys....
This would be an acknowledged issue requiring dialog between the parent and the teenager. There are mitigating circumstances. For one, the 18 year old sleeping with a 16 year old would be subject to statutory rape charges, whereas a father would have no recourse against another 16 year old high school student. And don't think that I wouldn't for one moment file them, just after having a private "discussion" with the guy. If your daughter wants to throw her life away on some loser, she would at least have had some college credits under her belt, better off than a high school dropout with an illegitimate child.