Re: "The age of digital money has arrived"
I agree, reading that I'm fairly sure that for 'Libre' to function it would be used a digital currency rather than a payment method, as in in lieu of pounds and dollars.
I'm guessing that would be transferred to your digital wallet to pay locally through whatever payment method is used. So another link in the chain, with a transaction / processing fee to boot.
All seems very unnecessary to me.