Originally Posted by madoka
Finally, you don't need 99% of stores to be open. Just the ones that can sell you food and water. And those convenience stores, grocery stores, and supermarkets will all just switch over to cash.
Anything bigger than a mom&pop is likely to close. Without power, no lights; in a big store, the big windows at the front don't light up the back, and few stores have many other windows. It's certainly true for Safeway/Lucky in Concord for simple power fails; can't predict what they would do for something more ambitious.
But if more than a few M&Ps would stay open, inaccessible supermarkets are not an issue for a passerby.
I agree that the ones defended would most likely be the family-owned stores. Corporations rely on insurance - ask any pizza delivery driver or stop&rob clerk who was fired for defending himself.
But if you need to walk out of an area that looks more like this
, and your route home follows the Mercalli IX zone, it seems best to have a couple things in your bag so you need not rely on foraging/buying on the way.
You play the odds your way, others play their ways.