well honestly...you gadda think about it...
your kids are prolly gonna do w/e the hell they wanna do. all you can really do is make sure they're educated enough to make wise choices. like, make sure they know the dangers of "bad" drugs, like crack, meth, heroin all that shit....cuz i'd rather my kid be a pothead than be a crackhead...anyday.

just like i feel about sexuality...

if my son decided he wants to be gay (and even if he's straight), i'll make sure he knows about the dangers involved (STD's and all that), and knows to use protection. as long as he's happy, and safe...that's all that matters.