[konstruktor]

I as a non-smoker can buy an e-cigarette, so one should judge the safety of the product on its own, not compared to something that is clearly harmful.

Methadone, for example, is used for harm reduction. It's only available as an prescription alternative to a harmful addiction. And still, substitution therapy is treated like any other form of medicine, i.e. the industry has to prove the merits of their product before it can go on sale.

Nicotine patches, which are available OTC to the general public, at least had to be proven as safe in clinical trials.