Admittedly it was many years ago now, 1966, when Australia changed to metric. Dollars & cents not Pounds, Shillings & Pence; metres, litres etc. If a whole country wants to change they will. I dont see the drive for it at the moment, and the rest of the world tollerates it and compensates.

what we all really need is the decimal day!

Can you imagine the whole world agreeing to migrate to a different single time standard?