Vaping in England: 2020 evidence update summary https://www.gov.uk/government/publications/vaping-in-england-evidence-update-march-2020/vaping-in-england-2020-evidence-update-summary
It looks like flavors aren’t close to the main reason youth vape. In fact, it looks like the largest group of youth vapers who vape because of flavors are those who were previously smokers and now have quit. Flavors appear to be critical to cessation.
“The best thing that a smoker can do is to stop smoking completely and the evidence shows that vaping is one of the most effective quit aids available, helping around 50,000 smokers quit a year.”