in anons view "money" is actually a "religion"
Some pray for it
Some pray to it
But all believe a $0.02 piece of paper/plastic is worth something.
In fact the believe is a piece of paper/plastic with a 5-0 printed on in is worth 10x one with just a 5.
this "magic" / "religion" works because the merchant believe same "religion".
Spending Yen / rubbles etc in Aust or USA might seem strange, but those are just other "religions" or denominations there of.
Crypto is no different. Just 1's & 0's that have a cult like following aka a "religion"
So what is money?