Don't mix Bitcoin with crypto aka shitcoins.
This is why Bitcoin is better than banking system, it's faster and transparent, there's no hide or secret fee if you want to send a coins. Government will not want to accept Bitcoin as a currency because people might tend to choose Bitcoin over their fiat and banks, if not many people use fiat and banks, the government will not make a lot money and many banks will collapse.
Unfortunately, Bitcoin is not anymore faster than fiat wire transfers, because on-chain transactions take more than 10 minutes, even with expensive mining fees while transfers through Paypal or Instant SEPA take only few seconds with no fees. So only LN transactions can compete with the speed of bank transfers now.