menthol or non menthol cigarettes Menthol: facts, stats and regulations FDA has what it needs

There might be another explanation that is less scientific

Most recently, don't trust the 2020 assertion on page 15 of "Smoking Cessation: A Report of the Surgeon General" stating: "Proponents of encouraging smokers to quit without treatment, often called quitting "cold turkey," point to data indicating that most smokers who quit successfully do so without medications or any type of formal assistance, as well as to population surveys suggesting that cold-turkey quitters do as well or better than those who use over-the-counter NRTs (Alpert et al

This would encourage adult smokers to switch to vaping as a likely less toxic alternative yet discourage youth use since they are the most price sensitive

Cyanide is generally not measurable

Lastly, what better evidence could there be that nicotine dependency is a true mental illness than watching millions of addicts view permanent addiction as a "solution"