It's much more worrying people who have been into fiat money their entire life (which is almost anyone) can't explain "money" either. Ask the average person what money is, and they have no idea. Ask theym where it comes from, where the money for their mortgage comes from, and ask if they have any idea how much money goes around in the global foreign exchange market.
People have no idea how it really works, and that makes them sleep at night.