People that smoke marijuana are impaired just like people that take and/or abuse opiates, benzodiazepines and it should be treated no different
But I still think we need to reform our laws regarding marijuana. Put laws in place that help prevent minors from obtaining the stuff (set the age limit at 21 [just like alcohol], card everyone, and enforce a DOUBLE penalty [to that of alcohol] for those that sell marijuana to or purchase marijuana for a minor).
Then by your standards, why don't we just bring back alcohol prohibition? What did that do for society then? What does marijuana prohibition do for our society now?
Think about that one very carefully.
I just think this needs to be thought out and a decision made by people that really know all the facts about marijuana and not just what they believe or heard. Most of that is BS.