> but because it can give ideas to other countries doing the same

This is happening right now in Europe. You have systems like Blik, Twint, Swish etc.

I know that at least Blik is working on making it possible for international payments.

> I know that at least Blik is working on making it possible for international payments

International transfers between MB Way (PT) and Bizum (ES) are working e.g. via phone number. See also https://en.wikipedia.org/wiki/European_Payments_Alliance

What's needed in Europe is federation of the existing systems, not one winner taking it all.

That's exactly what's happening, see the EU digital euro scheme. It's planned to be free of fees too, modeled around how SEPA was done for wires.

There has been massive resistance by the incumbents of course, including banks (since they too charge a fee on top of visa).

It's been in the backlog for years but the US sanction against ICC judges leading to them being cut off from most things including payment triggered a renewal of it.

Twint is in Switzerland for more than 10 years, hardly a new idea