if they onlyhurt themselves, super.
in the real world addicts of all kinds accidentally and/ordeliberately kill, rob,assault, hurt others physically and emotionally, lose jobs,can’t keep jobs, destroy families.
There is some circumstantial evidence to support you assertion:
http://news.yahoo.com/police-man-ate-pot-candy-shooting-wife-214528099.html;_ylt=AwrBJSAQU1BTNUUAFZPQtDMD
We will know with more certainty after the trial, as pot is going to be on center stage, as it will for the kid who jumped off a balcony.
I predict we here in CO will rescind the pot laws.