You are such a pedant Creeky, surely 3 is but the tip of the iceberg, they will lose those then something else until we have the ultimate dumbed down vocabulary and written words. It's nothing to do with right or wrong but far more to do with not having to change for changes sake.
£sd came before £p a lot easier to the point that many lost the need or desire to add up.
I'm not against progress but how much is too much?