It's a psychological addition of being stoned and slightly detached from reality - no different to people munching pills every weekend at a rave or drinking enough to be tipsy (or wasted, if that's your thing)

It's escapism, pure and simple.

> Psychological addition [...] no different to people munching pills every weekend at a rave or drinking enough to be tipsy (or wasted, if that's your thing)

I can assure you pills and alcohol are much more than a psychological addiction.