If it comes to the use of digital currencies for transactions, I think every country will like to have its own digital currency.
Every country's currency is already digital...has been since the early 1990s. Developed countries at least.
If you can send your local currency from one person to another without having to hand them paper or coins, your currency is digital.
This misunderstanding is why people are so hype about countries putting their currency on the blockchain, it's not new. It's not decentralized. It's not more free. It just gives government another way to monitor what you're doing with your money. Bitcoin seeks to achieve the opposite!