I've already pondered this and commented previously about it here. If tobacco becomes illegal, like, say, cocaine is now, possession would be deemed illegal too. Sure, they can start by allowing you a certain limit, but the plan would be to eventually declare ANY amount illegal. If your nosy neighbour espies you through your basement's casement window having a bowl and duly rats you out does his 'civic' duty and reports you, you'll have the cops raiding your home and confiscating everything tobacco-related. And, since possession of an illegal substance makes you a criminal, they'l confiscate your guns too whilst they're at it. Double play!
I had a drug habit for a long time and the idea of having to wait around for some shithead to rock up with an 8-ball of Ennerdale is a scary one.
-"Is this pure my man? This doesn't smell pure!"
-"Yeah brother that's some primo shit right there!"
-"Well for a start I'm not your bloody 'brother' and secondly this has got no sent. This is bullshit my friend"
-"No man that shits made with the finest granny knickers this side of Florida!"
-"Yeah I'm not buying it, this smelis like witches naval fluff mixed with kitty cat bum hair! Is this shit Clan?"
-"No man! Would I do that to you? That's pure Ennerdale, hasn't been stepped on nor nothing."
-"If I wasn't jonesing for a Lakeland bump I'd tell you to get lost!"
-"Nah man it's all good. You be calling me up quick time for some more of that once you've had a taste, TRUST!"
-"You Sir are a swindler and have taken advantage of my predicament for the last time. GOODBYE!"
-"You sure? I've got some sweeeet Esoterica coming in tomorrow."
-"Ummm, go on?"