Yeah yeah, it could endorse smoking, big deal. The warning labels are posted everywhere, if you take the risk, you take the risk. Enough of that before it starts.
I think it'd be amusing, it holds no real purpose in game, except amusement. But when I think of wizards..I think of robes, large brim hats, magic and long stemed pipes!
I want to lounge, pipe in hand and puff puff puff.
But seriously..there could be certain little things like this for each class/job that is in some way representative to the what they are. Let me utalize the pack or pouch item slot in my gear menu with a pipe, or mug of ale. Complete with prolong effects... you smoke the pipe for more than 10 minutes continously, smoke collects around your head, or in a halo. You drink ale for more than 10 minutes, your screen gets distorted, fuzzy, when you stand up you stumble around for a few moments before getting your bearings. Just silly little things really, but games need silly little things!