Dad, mom left the safe box open so we made a money carpet.
Ruslan, are you sure the dad won’t be mad at us?
I don’t know
(there is around $50,000 cash you see in this small vid)
So the only use for money from the perspective of human kid is to use it as a carpet (because many colored paper). That’s when you still not is trained to perceive this extra value the society gave money.