I believed this when I was younger, but now I've amended my position. Paper money isn't worthless - it has no inherent value, which is true. But if we all agree

I believed this when I was younger, but now I've amended my position. Paper money isn't worthless - it has no inherent value, which is true. But if we all agree upon it as a means of exchange and set fair rules on how it's made and spread, then we're good. The issue isn't with paper money, it's with making the rules excessively complicated or unfair, or just outright breaking the money rules. Paper money is conducive to that though - any currency specialists have an idea for creating a better way? I've always wondered about a private (non-government) diversified commodities-backed currency floating against international currencies, with liquid electronic and paper notes - and simple yet rigid rules and governance on how to absorb new purchases into the system and buy assets with it, and what reserves to keep for people cashing out. This is one of those things I sit and think about, but I reckon it'd be hard to do. Thoughts?