If a widespread power outage lasts more than a week, you would have bigger issues to deal with and (hopefully) community resources to draw upon. Otherwise, there is a good chance that things would be brought back up piecemeal, and you would be able to get cash or pay via credit/debit at least somewhere.

Typically go bags are emergency items meant for immediate "GO"ing during or right before a natural disaster, forced evacuation, civil unrest, or condemnation of your living space. So it would a week to get your feet under you.

If there is like a hurricane and your whole city is out of power for a week and you can't leave, there will be distributions of water and food pretty quickly.

IMO you need the cash more to make the first day or two easier, or if there is a card payment outage as happened last year here in Canada,

https://en.m.wikipedia.org/wiki/2022_Rogers_Communications_o...

How much would 0 dollars last you?