I, too, have seen and heard many of the same things previous posters have.... and have reacted in much the same way, responding "Vaping has worked for me, I tried your suggestions of patches, gum, meds, none of it worked for me, but vaping has.. I will give you some initial info if you are interested and you can take it from there and maybe it will work for you." I am going on the assumption that if they are not interested enough to do the research, then they are not interested enough in an alternative that might help them.
Some other scenarios I have encountered are those who respond with comments like:
"There's just too much stuff you have to carry around in order to vape, too much trouble."
MY answer: Well, it's a lot of trouble to fill/refill and carry around an oxygen tank also, and that's where you are headed.
"I just don't like the way those things look"
MY answer: Well, an oxygen mask is not too attractive either, and that's where you are headed.
Another perhaps more rare good effect of vaping for me: My husband is a slow eater, I am not. Previously, when out for a meal together, we often got tense (not an argument really, just tense) while I waited on him to finish his meal, him feeling rushed, me wanting to get out there to get a smoke. Now, if I feel the need, I stealth vape, but most of the time, just knowing I could if I wanted, helps relieve that tension.
Same sort of thing in an airport waiting to board, I usually don't vape, but knowing I can helps to relieve the tension. I do not CHOOSE to be confrontational in public places, although I do not argue with those who do. It's a personal choice. I don't usually vape in public no smoking areas by choice, but knowing I could helps me get past that deprived feeling, and knowing I can slip into the ladies room or a secluded corner and vape descreetly, well that gives me the satisfaction of making the choice that's right for me.
I offer help and info when asked, answer questions if I can, and be the best ambassador I can possibly be, but there are times, places, and people where nothing I do is going to have the desired effect, closed minds, stubborn attitudes, and I have come to accept that. Hopefully, at some point, those same people will have an epiphany and come back for the info, I was stubborn and unaccepting at one time also.
Good vaping to everyone and sorry for the long post.