okay so first of all:
I'm prepping myself, but just like the tools and knowledge to have on hand for when SHTF.
I'm not storing water or food or something like that.
I believe *IF* SHTF it will be a more or less slower process.
But sooner or later one will be unable to get certain things as easy as today e.g. a reduceable spade, binoculars or CB-Radio.
I trust on a network of trusted people.
Strength in numbers is one of the best things when SHTF.
First the segregation of duty, some would be good at building shelter, others are good at treating wounds or sewing and stuff.
One can'T do everything for more than the average size of a family. (Logistics = bitch)
One can't have knowledge of all and it also wouldn't be wise for only one person to know how to one specific task.
If that person is dead or gets lost, the knowledge would be gone too.
Also where i live it's not as easy to get a gun.
One would have to rely on hunters for this.
Meat would also be a thing you'd have to rely on hunters, no normal everyday Bill/Joe can hunt just because they have a rifle.
And as far as i know, my knowledge of guns is pretty darn near zero (Video Games don't teach you how to clean a gun and take good care of it etc.).
Of course one shouldn't be too open to people you don't definately trust.
They'd just would demand stuff and their first thought wouldn't be "how can i contribute".
That's not normal human behaviour.
But i plan on having some supplies / knowledge to contribute in a society after the collapse.
Maybe one can teach others to live without technology.
And why the hell shouldn't i be prepared.
IF SHTF during my lifetime; great i'm at least a bit prepared.
IF SHTF AFTER my lifetime; great i didn't need the stuff and my children will at least have the physical tools i left them.
Why shouldn't i prepare for an event that could occur during my lifetime and that isn't impossible to prepare for (at least a bit).