What is the practicality of El Salvador adopting a national digital currency?

“El Salvador’s congress voted to accept the cryptocurrency and won a supermajority of 62 out of 84 votes. Starting in September, El Salvador will soon have two official currencies: the U.S. dollar (USD) and bitcoin (BTC). In what is likely an unprecedented move for any nation worldwide, both USD and BTC can be used interchangeably within all government transactions — and this will likely make the nation a world leader in an increasingly digital era.”

Cryptoslate