Youth age 12 – 18 who use marijuana are 4 – 7 times more likely than adults to develop a cannabis use disorder.
Winters KC and Lee CY. Likelihood of developing an alcohol and cannabis use disorder during youth: Association with recent use and age. Drug Alcohol Depend. 2008;92(1-3):239-247.https://www.sciencedirect.com/science/article/abs/pii/S0376871607002979