sanji lighting cigarette Ngl this hit harder on rewatch… a smoke with shaking hands while lying to Luffy was peak pain. (UNDERATED MOMENT!!!) : r/OnePiece One Piece Vinsmoke Sanji GIF

Springer demonstrated that, at least in rats, the same physiological effect occurs after inhaling secondhand smoke from marijuana

Put out the cigarette he'd just lit as soon as we got in the car - 9GAG 9GAG

[10] [See cannabis culture.] Conversion of CBD to THC Conversion of cannabidiol (CBD) to tetrahydrocannabinol (THC) can occur through a ring-closing reaction

Access to Cessation Resources: Ensure access to evidence-based tobacco cessation resources, including counseling, medication, and support services, for individuals who want to quit smoking or using other tobacco products

cannabis (drug) Cannabis used as a drug for medical or personal reasons, marijuana , marihuana , ganja or Indian hemp in some jurisdictions

So you can see that there are various reasons why single cigarettes are a very popular product to place in a vending machine