I have never stopped for any stranger. Even when I know they are harmless. There are reasons I choose car travel — privacy and comfort. Both of which are gone the minute I share the small space with a stranger.
That might make me a bad person, but so be it. 🙂
You can call it what you want, but in most cases it is a manifestation of common sense, that's the conclusion I'm coming to now. Even if you didn't think of it that way 😊