Maybe easier for humans who use money because of similar values?) 
Are you sure?
Quote
£1 = 20 shillings (20s).
1 shilling = 12 pence (12d).
1 penny = 2 halfpennies and (earlier) 4 farthings (half farthing, a third of a farthing, and quarter farthing coins
1 shilling = 12 pence (12d).
1 penny = 2 halfpennies and (earlier) 4 farthings (half farthing, a third of a farthing, and quarter farthing coins
1 BTC chip = 20 shilling chips
1 shilling chip = 12 pence chips
1 pence chip = 2 halfpennies chips = 4 farthings chips
may use half and third and quaret farthings if BTC price go up