and the most expensive pizza...
That said, you're right... easy small transactions that don't go through a credit/bank card, would be nice. Especially when traveling or living in other countries.
Why? I'm hard pressed to see practical benefits over contactless card/phone/smartwatch payments for small sums. Yes, they work already internationally - at least with some definition of international.
Of course, that something doesn't look like today's cybercurrency either.
https://watcher.guru/news/edge-unveils-bitcoin-mastercard-fo...
Wait till you hear about physical non-traceable fungible tokens that you can carry in a hardware wallet in your pocket.