“Colorado shows that legalization leads to skyrocketing use among youth.”
Official data from Colorado says otherwise.
They survey kids in school every 1-2 years starting the 8th grade.
https://www.yahoo.com/lifestyle/teen-marijuana-rise-increasing-10-153828763.html
From June.
https://www.washingtonpost.com/national/potent-pot-vulnerable-teens-trigger-concerns-in-first-states-to-legalize-marijuana/2019/06/15/52df638a-8c9a-11e9-8f69-a2795fca3343_story.html?utm_term=.f72b35be3a96
145 days ago:
https://psychcentral.com/news/2016/12/27/marijuana-use-up-among-teens-since-legalized-in-colorado-washington/114378.html
Right now pot is not only legal but has less of a social stigma then even drinking does. OF course there will be more teens doing it.
BTW I would discount ANY reports commissioned by the state of Colorado. They will never tell the truth about use among teens or else they'd have to admit there's a problem with legalization.