I agree with Buttons. I am not a physician but having spent 27 years in law enforcement here are two facts all should consider.
Pot smoking does not mean the user will incur a severe drug habit, HOWEVER, the overwhelming number of hard drug users started by smoking marijuana.
Secondly, we have far more than our share of intoxicated individuals who drive all the time. Legalizing pot would only add to that number exponentially.
NCL Epic 2012, Eastern Caribbean
Explorer of the Seas 2009, Eastern Caribbean
Explorer of the Seas 2007, Eastern Caribbean
Explorer of the Seas 2006, Eastern Caribbean