No.   -  Knowledge evolves and accumulates, of course.  -  Speaking of trust, you are making the assumption that marijuana consumers are not trustworthy.  -  That is a wholly baseless and bigoted assumption.

SAMHSA research determined more than 100 million Americans have consumed marijuana. That's near HALF the of-age population. There are an estimated 30 to 50 million current consumers. The vast majority consume moderately - on the weekends or less, and are successful, hard-working, respected members of their communities.  They are from all walks of life and loved by the families they support. 

Since we now know marijuana is less "addictive" than coffee, is not a significant cause of auto accidents, does not fuel violence like alcohol, and is far less harmful than alcohol, this is no surprise.

Every person who switches from Budweiser to buds improves their health tremendously - as well as the lives of their family and community.