I wouldn't say they are ignorant.

I'd say they are ignorant of the Cannibus Movement, but, in general, that's pretty harsh to call a 45 year old man, who helps out in the homeless shelter, ignorant.

We just have to teach.

A few years ago, my teacher for a rehabilitation class said he knew a lot about weed. I was in there for a DUI.
On break, I talked to him and he told me to expect, within the next ten years, Europe and the U.S. to reveal it's studies.
He told me a lot of shit, but the main thing was...
THEY CAN'T FIND ANYTHING WRONG WITH IT.