coinage has an interesting history
in india, when the foreign invaders wanted to control the population
they minted new coins
but nobody used them, and that makes a poor system of control
so, they did some research
and minted new coins with the image of a luck god that was popular in that region
and spread rumors about how lucky things happened to people who carried these lucky coins
people then wanted these coins, because, who doesn't need more good luck, and apparently, the more coins you hold, the more luck you get
they of course also cornered the market on wheat (leveraging physical force, aka, soldiers) and set an exchange rate of X number of coins for X measure of wheat
this gives the coin practical utility
but to really get things started, they need the broadest possible USERBASE
and that's where the "air-drop" comes in
representatives traveled the countryside, making sure every village gets some free coins and spreads the word about how lucky they are
and just like cocaine
once you get them hooked
the system becomes self-sustaining