Why anyone would want to bring anything but fresh air into their lungs now that tobacco's damage has been well documented, is a mystery. Why anyone would let children inhale flavoured nicotine from "e-cigarettes" is equally inexplicable. Yet as we report today, that is happening.
E-cigarettes deliver nicotine, the addictive drug in tobacco, without the tar and other carcinogens of burned leaf. The electronic version is a tube with a battery that heats a wire, vapourising a drop of liquid that contains nicotine, propylene glycol - and a flavouring. It might be strawberry, chocolate or bubblegum.
These things may not be harmful in themselves, as manufacturers point out, though they are not particularly healthy, either. Propylene glycol is a chemical used in anti-freeze as well as many pharmaceuticals. The real concern is the behaviour they encourage.
Smoking was always more than the pleasure of the drug. It was a satisfying social prop, a stylish occupation of the hands, an instrument of calm, contemplative breathing that looked confident and cool. Young people took up the practice only for that reason. The narcotic appeal came later, once they had stopped coughing.
E-cigarettes provide the social and neurological pleasures without the carcinogens. Could not that be a good thing? Some doctors argue so, including one of New Zealand's leading anti-smoking campaigners, Dr Murray Laugeson. He believes them to be a valuable substitute to tobacco for smokers addicted to nicotine.