"might increase the level of smoking if some people thought it was illegal after all heroin and cocaine are illegal drugs but are readily available every where."
Think that logic is a bit flawed as if a ban would be implied, yes you would be able to get ahold of it, but it would still decrease as it gets harder and illegal. The majority of people trys to follow the law, they dont want to be cought not following the law, there for it would decrease
