In Thailand, this is not just theory. One study reported about 668,000 Thais aged 12 to 15 using cannabis in the past year in 2020. That was 13.3 per 1,000 in that age group, and a 3.5 times increase from 2016. https://peerj.com/articles/12809/ Another Thai source reported smoked marijuana use among people under 20 increased 10 times in 3 years. https://he02.tci-thaijo.org/index.php/ubruphjou/article/view/267674 For ages 18 to 19, cannabis smoking increased from 0.9% in 2019 to 2.2% in 2021. https://pmc.ncbi.nlm.nih.gov/articles/PMC10197039/ So this is not just an adult freedom issue. When use grows among school age youth, weak regulation becomes a school problem too.