I have rice and beans sufficient for a year for my home. Also important is multi vitamins. The rice and beans will give calories and protein. If one does not have access to vegetables you will get a vitamin deficiency.
Oddly for just a few hundred dollars one can assure food for a year for two at Sams by buying bulk purchases. If electricity is gone I have ample firewood, as I live on several acres of land with trees that always need trimming. Where I live is a housing complex of each of 3 to 5 acres. Mine is 8 acres. It has deer and turkey and oddly on occasion a mountain lion. I have not seen him in a few years. He is there. He or she likes deer and turkey also. A very large lake is withing walking distance of my home. I know how to make a fish trap.
I will survive and am armed and proficient with such.
Yeah.....your woods will be shot out in two months and your lake will be over-fished likewise.
It’s not as though you, your neighbors, friends, their friends, their relatives, their friends acquaintances and everyone in the general area haven’t thought of it either.