What Blanche said. Also, since all the evidence we do have, and has been linked to repeatedly above, shows that e-cigs and nicotine by itself do negligent if any levels of harm, and you're still jumping about linking it to all manner of things with no evidence whatsoever, it's hard to see how you're all for harm reduction.
I would for instance support teaching people how to more safely use cannabis.
How does that statement fit in with this one:
How long I wonder will it be that Vaping Cannabis is the new craze?
And, btw, cannabis vapourisers have been a thing for a while now, longer than e-fags. No I've never used one. I think they're generally marketed as 'herbal' vapourisers and remove the need to use tobacco alongside cannabis. Harm reduced right there.
Personally, I think if kids are vaping to give up smoking, that's a good thing. If kids are taking up vaping instead of taking up smoking, that's a good thing. If the many, many adults who find it hard if not impossible to give up smoking are turning to vaping, that's a good thing. I fully support an 18+ regulation on the purchase of all nicotine-related products and see that that vast majority of (online) vape suppliers already have this in place.
And really, even though you say it's a myth without providing any evidence whatsoever that nicotine is more harmful than caffeine, I don't have much of a problem with adult people taking up vaping because they enjoy it. We all have our crutches, foibles and pleasures. If they invented the calorie-free burger that tasted better than a Big Mac and did no harm at all, I'd be stuffing my face too.