New Zealand is often a test bed for US products and business trends. Coke Zero was there long before being around where I live and finally, we have Magnam ice cream bars too. It took a few years to figure out that a 4 digit pin #, for a magnetic strip credit card transaction, was much better. Before I got a Pin #, the cashier would lay your card down, back side up to see your signature while you sign the receipt (who does that here in the US ?). Pin#'s take seconds and are much more secure. Why don't we have credit card Pin #'s in the US ? Bottom line is money for the card company. If we had them, it sure would make it easier on the heart after the sudden discovery that you have lost your wallet or your card. I have heard something about NZ going card chip only. Won't work very well with the tourist.
Things change rapidly in NZ, so this information that is 7 or 8 months old may be obsolete by now.
I have never used an ATM, so I don't know much about about electronic money. Cash I do know. I wonder if the Canadians have Pin #'s for credit cards.