Hello, I read a lot of posts that mention concerns about parents or school etc.... I would say that anyone under the age of 20 should seriously consider not using cannabis. Although there is a lot of evidence that cannabis use in adults is benign that isn't necessarily the case with minors. There is definate evidence that cannabis use in minors can be hazardous. The brain is still developing into the early 20's, and introducing foreign chemicals can be a serious danger to long term cognitive abilities. I speak about this subject as a professional scientist who has studied the research. If you are under the age of 20 then wait to try cannabis.