I hope that the adoption rate will be strong in Singapore.
While Singapore has NFC payment for years, adoption rate by retailers are poor, most of the cashiers has no idea how to use it and will choose to use the old terminal.
I disagree, quite often when you hand over your card the cashier will reach over the till and place your card on the contactless unit. In fact you now seem to have more issues if your card isn't Paywave enabled as they will try the contactless a couple of times before understanding that it won't work.
Nearly every store here, excluding 7-11, has contactless terminals and it's much more prevalent than the UK