In some countries the central bank launched a digital currency independent in consideration, such as the recent news that the European Central Bank in the euro currency ECB-Coin, consider pushing digital encryption currency bank of Canada on self advantages and disadvantages, Russia must figure out the ruble, even bitcoin is not friendly to China, in consideration of the possibility of independent digital currency, Do you think these digital currencies are similar to bitcoins?
Not even close mate, not even close. They will end up to be miserable alts, believe me. Unless and until there's some sort of regulations added to it's background, they might have some future. Otherwise it's a strong no.
For any altcoin to even come close to bitcoin, there requires a strong, legit and powerful support. Like the support shouldn't vanish in a day's gap, which is quite frequent to literally all the altcoins. Bitcoin is an exception because we saw this year how the prices got influenced and such cases are a rarity now.
Bitcoin cash has increased and is quite stable in the ~1500$ ,when frankly no one thought such a case will ever be true, eth and litecoin and monero are proven to be better than bitcoin cash but they quite didn't reach level, and given the circumstances bitcoin cash rose real quick. My point here is that one of the minor reasons for the price of bitcoin cash rose is having bitcoin as it predecessor in its name(again a minor reason ,not that big a deal but nonetheless).
So if any central bank is willing to introduce it's own crypto, let it do so ,but it sure as hell is not going to come close to bitcoin's price. We have got nothing to worry about. Take ripple for example. Price has been the same since forever now. Makes sense, right?