Maybe I should clarify what I was looking for here. Not looking for advice on how to raise nor speak openly about sensitive topics with my children. We live in the Phoenix area (not exactly a drug devoid area of the country). The public high school my oldest attends has over 5,000 students. Believe me, they have been exposed to and seen pretty much everything. Just wanted to get insight on how prevalent the ganja smoking is and how much overhead smoke we might be dealing with here if any. Is it well ventilated?

Thanks for all the replies.