The irony of this is that what I have seen from modern societies in collapse* is that people band together more with their neighbors or tribe and there is less place for individuals. So maybe it is not going to be you running around in the woods with a bow, but instead a big group from a nearby camp (or a wandering tribe) dragging you out of the woods to pump water or prepare food. Collapse may be disappointing for prepers.

* I am thinking Katrina, Iraq, Syria-- modern places where things have really fallen apart.