I think that drug use has become a social connector, like people who get together to drink or eat or whatever. It's part of the "party" scene, and it has become part of the celebrity image as well. I think it's like anything else that people do because it seems to be linked to risky behavior and cutting loose. People do it because they want to fit in with a certain crowd, and they do it to seem cool. That's the social aspect anyway. There are all those other reasons why people use drugs when they are alone.
It has become just on of the outcomes of a culture of excess.
No that life has become that bad that everyone is trying to escape!
I would be inclined to agree with that.