That law is unenforced, so the sin of cigarette-selling leads to more violations. Do not harm strangers, e.g., children in a store where tobacco is illegally sold. Do not follow a multitude to do evil, e.g., sell tobacco. Violation of the latter command, and buying endorsements by prominent people and lawyers, has led to the mass violation of the foregoing commands. Loving one's neighbor as oneself fulfills the law.
Tobacco is a mind-altering drug.
But due to the commandment-breaking, it leads to evil effects our paper, Encl 4, documents. Too many in society do not love their neighbor as themselves. So they condone the vast illegal sales of cigarettes to unsuspecting children and the resultant foreseeable deaths of tens of millions. So you are doing good in trying to reverse this state of affairs. It's hard, I know.