The NYU School of Global Public Health did a great analysis of the 2018 National Youth Tobacco Survey.  This same survey is cited as the “Epidemic” of vaping among the youth, But does the data really show that?

Spoiler alert, it does not, nor does it show a “gateway” effect of youth vapers turning into youth smokers, quite the opposite actually.

https://www.nyu.edu/about/news-publications/news/2020/january/youth-vaping.html