In the event that we’re reliant on barter, who would barter something useful for something useless?
Because in the history of barter - gold and silver have always been traded and have never been worth zero.
There are plenty of other things to barter too.
I think the whole idea is to have/make something useful to trade for something useful. But yes - that can be difficult to find that one-on-one situation. (Hence money was developed).
But, I have a bunch of my kid's clothes (and some adult stuff) that I have stored away. I hope that I am nuts for saving it, but if need be, I can barter it away. Although my biggest need in a total wipe-out would probably be food - and not sure who is going to give their kid's food up for some clothes. A farmer or gardener I suppose?
If it wasn't completely bad, perhaps hiring a young family man to help chop wood for my stove in exchange for some clothes.
I'm guessing that, like the Greeks, the successful ones would be very creative.