I don’t trust any government with this sort of feature. If they can easily turn off specific instances of currency, they will start with organized crime, then progress until shut down your money when:
* a member of your household downloads media in violation of copyright
* a member of your household uses “gamer words” in Fortnite or Roblox
* a member of your household votes for the “wrong” candidate
* a member of your household participates in a protest that could affect someone rich and powerful