If this is a medical device for ending addiction, do we really need to have fruit/candy flavors lining the shelf in colorful bottles with cartoon mascots?
People weren't smoking fruit/candy cigarettes. Those were banned and nowadays only barely exist. No reason to have vape flavors beyond cigarette flavors, if they are a medical tool.
Just looking at vape products on a store shelf is proof that the producers do NOT think about their product as a medical device. That entire argument, that it is primarily a tool for breaking a smoking habit, should be categorically dismissed. If it were a BTC or prescription-only product for breaking a smoking habit, no reasonable person would have negative opinions about it.
The reality is, vaping's primary purpose is as a drug. An addictive drug that makes the user feel good to use and has certain provable short- and long-term side-effects.
I think people should be able to buy and use drugs. But only with informed consent. So long as the information is so poor around vaping, the consent isn't informed and we need regulations. And if this is a drug, it should be getting sold in an appropriate dispensary by trained, knowledgeable staff and not from corner stores, bodegas, and sketchy website that don't even properly screen out teen buyers.