Metal money is not a good thing for everyday use. Heavy physical use damages and eventually wears away the metal as it's used, decreasing its value by weight.

Ever seen heavily used gold and silver coins from the 1800s? It's not pretty.

Metal money is not a good thing for everyday use. Heavy physical use damages and eventually wears away the metal as it's used, decreasing its value by weight.

Ever seen heavily used gold coins from the 1800s? It's not pretty.