As Europe moves seemingly inevitably towards the creation of a digital euro, Panetta has been appearing at the European Parliament's committee on economic and monetary affairs to discuss the project.

Panetta says that Europeans see the ability to pay anywhere as the most important feature of a potential digital euro.

He says that to ensure this, a digital euro could be given legal tender status in the same way that bank notes are.

"If introduced, the digital euro would be a public good, and Europeans would expect to be able to access and use it easily, anywhere in the euro area. So, it would be more beneficial and convenient for all users if merchants that accept digital payments were obliged to accept the digital euro as legal tender," says Panetta.

The move would have other benefits, making European payments more resilient, enhancing competition and reducing costs, he suggests.

On the other side of the coin, access, Panetta says that individuals and merchants will expect to be able to obtain digital euro at their banks, just like they do today with cash.

"It should be simple for people to start using the digital euro, and there should be no need to change bank in order to do so," he says.

However, in the face of mounting scepticism among EU nations, Panetta accepts that political opposition could effectively sidetrack or even derail the project.

"Throughout the next project phase, which is expected to be launched later this year, we will accommodate any necessary adjustments to the design of the digital euro that may emerge from legislative deliberations," he told MEPs. "The possible decision by the Governing Council to issue a digital euro would be taken only after the legislative act has been adopted."

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