As long as they're nice confusing multiples; pounds, shillings, pence type of thing rather than this newfangled decimalised malarky.
"Now, to take the fairy cost a nickel, and in those days nickels had pictures of bumblebees on them 'give me five bees for a quarter you'd say! Now where were we? Oh yeah, the important thing was I had an Onion on my belt...which was the style at the time!"
-Abe Simpson
I don't believe the U.S. ever had anything close to as complicated as pre-metric currency in Britain, not to mention anything remotely as confusing as using L to mean Pounds, and d to mean pence. Ha'penny, Penny, Thruppenny bit, Sixpence, Shilling, Two-bob, Guinea, Half a crown, Crown, Half Sovereign and a Sovereign, if that confuses you imagine how confusing BG3 would be if it adopted a similar system for multiple currencies.