I'm not convinced this is true.
Visa and Mastercard have a virtual monopoly on payments. Almost any and every store in the world has the ability to instantly process a payment through Visa and Mastercard networks.
Competing with this from ground zero requires massive amounts of time and money. Jeff Bezos type money.
Speaking of which, Amazon has been trying to crack this market for years without too much success.
My guess is that the best chance is to lobby the EU or US for this kind of standard. If one of then could be convicted to implement such an open standard payment system then others might follow.
The success chance of lobbing the EU or US is of course probably low and that might also be the answer to the questio.
The problem had been that the entrenched interests own the Law and use it eagerly to ensure their monopoly. I'm still mystified by Paypal being allowed to exist, early on, while all its competitors were squashed, usually by legal actions. The rise of the "wildcat bank" crypto-cons even more so.
So perhaps it's possible now. Maybe Etherium or Bitcoin is that network. I think the banks and "traditional economy" are going to have to be forced into cooperation with whatever such a thing might be against their will.