I guess I was just going with the only real non-military-conflict/non-failed-state reason for your average person to have weapons on them constantly is if there’s everpresent environmental threats to survival right? This is kind of the zombie apocalypse scenario, where everyone needs a shotgun because you could turn any corner and there’s a zombie ready to eat you.
I guess you could get into the “but what (aka WHO) is considered a threat such that I need a gun on me at all times” vis-a-vis our current culture and climate but that gets too depressing real quick.