Really, dfw???
You want to equate drug usage with internet addiction, eating too may carbs, exercise...?
You know better than than.
I'm not necessarily equating them....but how much government intrusion do you want to make sure people don't do those things? We want drunk drivers off the road, so what do we do, we monitor drivers...we don't ban alcohol, or make sure people don't drink. And if you truly want to decrease drug usage, use the power of social sanctions, as I mentioned earlier with how you no longer see pregnant women smoking or drinking....I don't necessarily think that's because they know it's bad for the baby, it's because they know that any one who see them doing it will be appalled, and they would be outcast.