I'm not sure, really. I think even when perception of something has changed so things are more common, anything can produce fear, even if explained. There will always be people who don't know about something and people who are afraid because they don't know.
Not to say that you shouldn't try, though. A world with less fear is less power for them. And just a nicer place.
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Not to say that you shouldn't try, though. A world with less fear is less power for them. And just a nicer place.