apologies, but i'm going to have to play devil's advocate. just to preface, i don't know how it is everywhere else, but here in socal, there's a lot of hipster-type people who've never touched a cigarette, but vape constantly because they think it looks cool. i know this isn't the case with all non-smoker vapers, but i'm sure it's shaped my opinion somewhat.
anyways, no offense intended to anyone, but i'm completely against non-smokers vaping. there are currently a lot of people and a number of powerful entities who are working to heavily regulate vaping, or ban it entirely. non-smokers who vape give them more reason to do so (hey, 14 people smoked cigarettes, but now we have 20 who vape, so we'd better get rid of this now).
20 years down the line, when everything has (hopefully) been figured out and we can (hopefully) vape in peace, fine, let non-smokers do what they want. for now, though, vaping keeps me and thousands of other ex-smokers off cigarettes. if it does get banned, non-smokers probably barely notice, and the rest of us go back to cigarettes.
again, i don't mean to offend anyone, just wanted to share my perspective.