They should bring back the old money system too...shillings, crowns, guineas. While it was a little cumbersome to learn, once you did it was way more functional.
Money’s value would have to be worth something then, or else the farthing (¼-penny) would cease being minted quite fast.
Guineas at one time used to be equal in value to the pound at 20 shillings, but the increasing value of gold bumped that up to 30 shillings, so the value ended up fixed at 21 shillings for 151 years. The name came from Guinea in West Africa, where they got the gold to make the guinea coins.