I do wish I could openly vape more in public, not because it's convenient, rather I would like more smokers to see it and inquire. Hopefully, to save more lives as they ask "what is that?". : )
However, I believe that smoking has done so much damage to the perception of something blowing out of the users mouth, into the open air forcing those around to "smoke" too, that many people don't want to have to wait until the "powers that be" (FDA, etc...) tell them whether vaping is safe or not. So, I do not vape around anyone. It isn't that hard either (imho) to wait the half hour or even hour, to get to a place where I do not have to "subject" those around me to the concerns. And, we really can't say "it's safe". We can say with confidence that vaping is no way near as bad for us as smoking. But, there are no conclusive studies, yet if it is completely "safe".