I agree. As long as there is internet cryptocurrency could be crucial in this kind of situation as it is way safer compared to having physical assets like fiat that can be stolen so as precious metals but with the possibility of locality using it though in United States many are into crypto then it is not an issue but here in my place maybe only few are into crypto while digital wallets is quite common here so cashless transactions just like what had happened during pandemic was very effective.
Do you think that crypto can't be stolen? Especially in a civil war scenario? Where people will first shoot you then ask you to give you their money?
How many cases have we already seen of robbers beating their victims till they disclose all their keys and wallets? You realize robbers will just have to hit you till you give them the keys and after that keep hitting you to tell them more keys in case you have, they don't care that you don't actually own more, they will just keep doing it till you either fell unconscious or you give them all.
Besides, as civil war and actual wars have proven, cash is king, if it were for crypto you would see people actually using it but that's not the case.
Why take crypto when next bomb can bring down your generator and you have no way of spending those coins?