Сонная_соня, well, my husband's friends (some of them) are such people. They smoke it too much, 'cause there is no joy and pleasure in their lives (as they think), but I think they just do nothing to feel some bright emotions, so it's easier to feel it with some stimulator's help...
Maybe they think that 28 or 30 years is the age when you can't do anything, but I don't think so.
I mean I don't protest against it, but they do it too often and because of such reasons...