Most European countries I frequent already have their own local equivalent to Pix. In Spain almost everyone has Bizum, and not uncommon for vendors at markets to accept it too, Sweden has Swish which is the same deal for the Swedes. I think this lists the most prominent ones that are in wide usage today already: https://en.wikipedia.org/wiki/European_Mobile_Payment_System...

Apparently, some of these already have interoperability between each other too (https://en.wikipedia.org/wiki/European_Payments_Alliance), happy to learn I can now send/receive money to/from my Portuguese brethren :)