I was recently at the doctors, and had a nurse ask me why I hadn't been vaccinated. I gave my usual answer that they like to hear, and then she expressed some shallow anti-vax sentiments. I'd never met this person before, and she had a lot to lose by talking the way she was with me. I didn't bite, and later realized it's at least possible I was being lead down a path. To what end? No idea: maybe just to see how people like us think, maybe she was a disturbed SJW self important hero, maybe I'm wrong and she was genuine. In any case, be careful. Don't stop sharing and spreading the truth, just be smart about it, and be wary of people who open up too quickly; they might be trying to gain your trust to use it against you. Be especially cautious about strangers who know who you are, while you know nothing about them (like healthcare and government workers).