They will never be popular enough, China tried their CBDC but there seems to be no traction they gained from it. The best thing to do is not to replace something established to introduce something new, the old is good so why change it right? I hope that they realize that fighting this wave by creating their own digital currency will not cause any damage and instead of fighting it, they will just accept it as it is and try to make regulations that are satisfying for the two sides which is the government and the people who use bitcoin and other cryptocurrency.