No, no major government has completely adopted cryptocurrency as legal tender. El Salvador became the first country in the world to do so in September 2021, but there have been significant challenges :

• Volatility: Cryptocurrencies like Bitcoin are known for their price swings, making them less than ideal for everyday purchases.
• Consumer protection: Concerns exist about the risks faced by Salvadoran consumers, especially those unfamiliar with the complexities of cryptocurrency.
• Business adoption: Businesses have been slow to embrace Bitcoin due to technical hurdles and a lack of customer demand.

Cryptocurrencies are still considered too volatile and risky by most governments for everyday transactions.