There's nothing new under the sun.
We used to snort sherbet, smoke candy cigs and drink ginger beer cos it came in 'stubbies' (beer type bottles)
Kids will always emulate their folks or do what they think is 'cool'. We need to show some leadership.
In the end I think we shouldn't panic - maybe I'm not the best example for it being 'just a fad', but I know many of my mates who did the same things grew up to have non addictive lives.
D