Yeah, I live halfway up a small mountain (in Europe) and usually have everything needed to survive a month, including if the water and power are cut.
We’re currently putting together a pair of bug-out bags as well though, so we can be mobile in an emergency too
Just chipping in to say I ate a can of food that was made during WW2 in 1990, so yeah cans do keep for a long time … when they get very old the trick is to shake the can before opening and if it sounds like there’s air inside it’s gone bad
The inverse is also true, my wife is an exceptional programmer, and is cute and wears boy’s clothes :-)
I once jumped a car onto a moving train while on fire