One question you should be asking yourselves.
And we won't even consider abusers, but if you have a son or daughter, how happy would you be if he/she had the occasional alcoholic drink, or burned an occasional joint, or did an occasional line of coke, occasionally smoking crack or crystal meth, or even injecting heroin every once in a while.
Does the idea of your son/daughter doing some of the above, stress you out a hell of a lot more than the first two ?
And, if you found your son/daughter with a needle stuck in their arm, would you say that it was all-right since prohibition wasn't working anyway ?
If it does, ask yourself "why ?", and then apply the resulting answer to the question of making it legal for everyone's son and daughter.
Call up from the basement, Dim, and ask your mom if she's happy with you making the house smell 'skunky' all day and night.
( yes, that was a dig )