if advertising and normalisation is allowed there is a risk it could be with impressionable young people
From the same briefing: It has been hypothesised that electronic cigarettes could act as a ‘gateway’ to smoking tobacco among children and to the ‘renormalisation’ of smoking. However, current evidence suggests this phenomenon is not occurring, at least in Great Britain. In fact, since electronic cigarettes have been on the market, smoking prevalence has declined among children. Whilst some never-smokers are experimenting with electronic cigarettes, regular use is rare among children and current electronic cigarette use is confined almost entirely to those who have already tried smoking.
many people regularly vaping in an enclosed area
I don't know which pubs you are going to but in 2 1/2 years of vaping I've never encountered this. Many pubs, including the large chains, ban it altogether. Of those who allow it, it's generally on the understanding that you don't annoy other customers. Occasionally I'll spot one or two other vapers, being so discreet you wouldn't notice unless you were right next to them. Did you maybe attend a vape meet by accident?
The info above stating that two thirds of vapers continue to use tobacco alongside of electronic cigarettes does not surprise me.
From the same briefing: ASH research shows that the most commonly reported reason for using electronic cigarettes is “to help me stop smoking tobacco entirely”. and also, There was no evidence that using electronic cigarettes at the same time as using tobacco cigarettes made people less likely to quit smoking. and even, There is also some evidence to suggest that electronic cigarette use leads to abstinence among some smokers who had not intended to quit.
It's worth noting that the figures show 2/3 of current vapers are also still smoking and 1/3 of current vapers are just vaping. The figures don't include those who have switched to vaping and then quit vaping as well.
Most people who quit by vaping 'dual fuel' for a while. It takes time to find the right kit and eliquid that works for you and learn to use it effectively. DH took a whole year to drop the last fag of the day. I'm very glad he switched as he has type 2 diabetes and high BP. He now stands a much better chance of not dying prematurely.