There are similar payment options across the EU. There is Bizum in Spain which works in similar way (and also offers phone-to-phone transfers).

There is EMP association (https://en.wikipedia.org/wiki/European_Mobile_Payment_System...) which both BLIK and Bizum and bunch of others (I'd say majority of Europe) are members of that are already working on integration and Spain and Italy already work.

https://www.corporate.sibs.com/europa-the-future-of-payments...

Basically with Wero on decathlon.de the DACH is discoveryng local-digital-payments and are excited about something that the rest of Europe enjoyed for a long while ;)

There's an interesting angle to BLIK vs Wero. While I believe QR codes are more convenient it is actually possible to give BLIK over the phone. Which means that youngsters (or fraudsters ;)) have access to their guardians' money over the phone line.

There is also a Blik feature to pay in one click - merchant remembers your payment and allows making subsequent payment without code, just by confirming transaction via banking app.