When states first start talking about possible legalization, in one form or another, teenage cannabis usage is added to the conversation. The common theory is that legal cannabis will end up in the hands of teenagers. One example against that theory is the fact the black market still exists. Teens will still find cannabis in some way. A new study shows that teen usage did not increase after legalization, unsurprisingly it stayed stable. Check out the link below for more information on this study.