I think people in Montreal smoke a lot, and I used to smoke when I was 17-18, and just picked it up when I was playing juniors. But I think I stopped when I was 22, which was a big decision in my life.
In short, no pattern is an isolated entity. Each pattern can exist in the world only to the extent that is supported by other patterns: the larger patterns in which it is embedded, the patterns of the same size that surround it, and the smaller patterns which are embedded in it.