Writing my comment before I read the others because I don't to get off track. 

You pose some great questions. As the mother of daughters AND sons, I wonder  what I will do differently with them and how much of it is in reaction to my own parents or church upbringing. 

One thing that troubles me is the apparent assumption that alcoholism is a sin. While it may be sinful to become inebriated, is it sinful if the drinking then is no longer physically able to function without drink. As the child of an alcoholic, I have deep respect and empathy for those who can get and stay sober. I realize there are others who find the "alcoholism as illness" to be an excuse. I have seen DTs; they are not fun. 

But...what I want to teach all my kids is a proper respect for their bodies, how to make good decisions based on fact and faith, and to be thoughtful participants in the world around them. In a perfect world, I would want my kids to wait until marriage to experience sex. But I find that argument that you can't have a fulfilled relationship empirically disproved. 

And getting married younger may quell those hormonal desires but does it suit you? Hard to believe the church would participate in a potential disaster producing activity. 

That is all.