Every country definitely wants to promote its own currency.
Small countries only want to get rid of the control of big countries to use Bitcoin as their currency.
As a large country, the United States has not set Bitcoin as a legal tender, indicating that the United States still wants to use the U.S. dollar as a benchmark against the world currency.
The anonymity of Bitcoin can protect everyone's privacy. Bitcoin makes our consumption free, but the country has to control its own economy, which will destroy the anonymity of Bitcoin.