My fear is to not have something I need (maybe I had it, but ran out of it during the disaster), and not be able to fashion a suitable replacement.
Happened to me many many times. In the heat of the moment I forgot that I did have the needed item, and completely forgot where it was. Then when things cooled down, I remembered I had it and remembered/discovered where it was.
Irrational fears ?
Non-preppers are the norm around me.
Being prepared is the rare exception.
So, why worry about anything ?