It's obvious actually. The drug dealer is a store. It gonna find its customers anyway.
Just for the fun, so now if I want to sell drug X, I just got to find people who got a lot of friends - who have potentially the profile to consume that drug. I bet it works really fine. You probably don't have to go in the street at all :P
EDIT: oh but how many people are saved by this: the risk/reward ratio is too high? The risk of the drug dealer is in the equation then. But you're right on something, the strong profile for drug X can do nothing and it's kinda unfair.
I don't know, and I'm pretty sure that it is unknown in general. However, drug use is lower in countries where drugs are legalized and regulated, and rehabilitation rates are higher. If this trend holds, whatever number of people are saved by being too risky for drug dealers to approach, the number of people saved by regulated legalization is likely to be higher.
Your logic seems fine to me, but it's based on an assumption that it is hard for people to find drugs for the first time. You're probably not frequently presented with opportunities to do heroin, but you're also probably not the kind of person who would do heroin even if you had the opportunity. Drug dealers aren't going to approach you to sell you heroin because the risk/reward ratio is too high. The same is not true of teens and people in their 20s in poor neighborhoods.
> Doctors prescribe morphine, most likely when not using it is worse than using it, which doesn't mean the risk are low.
True.