the government should use bitcoin for the purpose of security, like avoiding money counterfeiting, and it is unhackable the best feature of it.
Bitcoin can indeed avoid money counterfeiting, but remember that in addition to good features Bitcoin also has weaknesses that can harm the government, that is Bitcoin cannot be tracked so that crime, money laundering (corruption) and tax evasion can occur using Bitcoin, so before accepting Bitcoin the government must first think of ways so that this cannot happen if the government legalizes Bitcoin.