I think it would help create fintech local alternatives to Visa and Mastercard, if it gets feature parity. It could be cool and, to be honest, this market could use a bit of a shakeup.
That's a great question!
It would therefore follow that any international financial system would be very complicated and expensive to set up, and would be helped enormously by a burn-it-to-the-ground-and-start-again replacement system.
(...if that system was well designed, and given how everything in the EU works...)
If a digital € would change that is questionable though. Perhaps ambitions would get even worse.
Also a very good argument for cash. I like untracable transactions. I isn't just to benefit crime, it is also about privacy.