goverment did not accept BTC because,its centralized so,no one can make corruption. so,they reject BTC . Incase BTC price will down the government can close the btc currency.
Yes you are right, and the solution for the governments accept bitcoin is the peoples on the countries must adopt bitcoin in their real life, it will makes the governments accept bitcoin because of follow their people,
unfortunately it needs much time for the governments accept bitcoin, because there are not many people on every countries adopt bitcoin for payment method or investments.