im not think government will enter to buy or sell or start it is own coins like bitcoins because it is out control of central bank and cant add more funds to it
Who will purchase the coins if the government comes up with them? The most important aspect of Bitcoin is that it is protected from inflation by the principle of limited supply. The government authorities may not be able to adhere to this principle, which means that it is not viable for them to mint their own crypto-coins and release it to the public.