The problems of the ‘clean water’ or bullets or meds, containers ,etc. are as listed:
Weight, not having a fixed amount of value and rarity.
Water is too heavy, clunky and unweildy to carry around, I mean who the hell wants to haul 30 55 gallon drums across the state to trade?
Also, as someone said, water isn’t that hard to process, I mean this isn’t Fallout where non-irradiated water is rare and has a good form of value. Not saying clean water doesn’t have value, however - There’s a reason why money was invented.
For example, in the ancient times, wages were payed in grain - Shekels are a form of currency that used to represent a bushel of barley. There it is, it’s more practical to have a set value on an item and to have something unencumbering to carry and preferably doesn’t rot away.
More on it here: https://www.youtube.com/watch?v=zzaTP6s_HcY
I’m thinking that you shouldn’t completely eliminate cash, but instead make a new system. (so to speak)
I find it weird that money bundles are merely trade fodder/junk and that no-one has wallets or something. No paper money, no bills, nothing.
I’m pretty sure after the cataclysm the paper money wouldn’t immediately lose their value - I mean, the easy to carry, they had a lot of value pre-cataclysm, they’re pretty inflation resistant, and they’re damn hard to fake.
I’m saying take a thing from fallout and put like a counter on the top right of the inventory to show how much money you have in a wallet or purse or whatever, and if you don’t have it as a stacking item in the inventory.