A new report published by the the American Medical Association (AMA) finds that neither adult-use cannabis legalisation nor the opening of retail stores in U.S. states led to increases in youth cannabis use. Rather, the reforms were generally associated with more young people reporting not using cannabis, along with increases in those who say they don’t use alcohol or vape products either.
The results of the study, published on Monday in the medical group’s journal JAMA Pediatrics, reinforce previous findings that legalising and regulating cannabis for adults, typically does not increase youth use of the substance—contrary to what opponents of the policy change often argue.