Lots of studies about marijuana use after legalization. Many point to a reduction or no change in the use by teens. https://www.cnn.com/2019/07/08/health/recre

Lots of studies about marijuana use after legalization. Many point to a reduction or no change in the use by teens. https://www.cnn.com/2019/07/08/health/recreational-marijuana-laws-teens-study/index.html https://www.cnn.com/2019/07/08/health/recreational-marijuana... One could also argue that removing blackmarket sources would make it more difficult to find drugs as an adolescent, as adults are less likely to buy for teenagers. This study seems to support that idea https://www.newscientist.com/article/2209053-us-teens-may-be-finding-it-harder-to-buy-cannabis-after-legalisation/ https://www.newscientist.com/article/2209053-us-teens-may-be...