If the coins are issued by the government, they are most likely not anonymous.Each user will be identified.Total control.
Many states will issue their own centralized cryptocurrency. It will actually be the same national money, only in digital form. They will walk in parallel with the national money of the states and will play a secondary role. They will not replace each other, but various combinations of their joint existence are quite possible. Cryptocurrency is only developing and in the future it is able to give us many new surprises.
There are both either positive and negative site if it happens so the government will not be able to do anything suddenly and this possibility will not be able to approved by government will be very low if it happens we can definitely accept that but I am thinking it will not happen anytime.