It is also our right to use the Imperial system and not understand metric.
3 out of 4 Americans don't realize there are 16 ounces to the pound.
7 out of 8 Brits don't know that there once was 20 shillings to the pound sterling.
Also a retarded unit that got dealt with.
There is something to be said for units of measure not based on 10.
12 is divisible by 2, 3, and 4.
60 is divisible by 2, 3, 4, and 5. Why don't people ask for 100 minutes in an hour and 10 hours in a day?
The olde English system of coinage is extremely quaint and charming. What is not to like about a groat?
The one that always seemed out of joint with everything else was the guinea.