Monetary currency is important

Currency, in and of itself, is nothing. It can be a shell, a metal coin, or a piece of paper with a historic image on it, but the value that people place on it has nothing to do with the physical value of the money. Money derives its value by being a medium of exchange, a unit of measurement, and a storehouse for wealth. Money allows people to trade goods and a service indirectly understands the price of goods and gives us a way to save for larger purchases in the future. Money is valuable merely because everyone knows everyone else will accept it as a form of payment.