I was asked recently whether sex ed should be taught in schools. My answer was that if a school could, or would, address the full range of thoughts on the matter, then sure. And by full range of thoughts, I mean the major philosophical/religious traditions and their contributions on the subject. But as it is in non-religious schools, those contributions must be (or at least are) ignored. That leaves largely a non-judgemental, you-are-going-to-do-it-anyway, so-let's-be-safe approach.
Why not take the same approach with drug and alcohol use? Should children learn which vein to stick the needle in? Or how to make meth without starting a fire? And to drink a few glasses of water after binge drinking to minimize dehydration?
If adults can't or won't make moral judgements, should we be surprised that children and young adults can't or won't as well?