Nobody needs to justify themselves for vaping, but WHO and the EU and the FDA and Canada and a whole bunch of other organizations want to take vaping away from us, giving "Non-smokers might start vaping" as their reason. So even if it's none of my business whether someone starts vaping or not, I'm SURE not going to get caught promoting it...it would get cut-and-pasted into an FDA report and used to ban us.
Thing is, if enough non-smokers start vaping, then the ANTZ won't stand a chance. If vaping reaches a critical mass before the government acts, then it won't be feasible to ban it.
So, OP and others: Welcome to the ECF! But don't tell anybody I said so!
Now that's the spirit!