“But mommy, why do we need this? Everyone knows if you want water you just turn on a faucet.”
When our one of our kids were at the toddler age, they wanted my wife to buy them an expensive electric riding toy they saw at the store. My wife said “I don’t have enough money to buy that.” Their reply was “But you just go to the money machine (ATM) and get the money.”
I think of that event anytime rats want to spend crazy money. No concept of where the money really comes from.