The government understands bitcoin more than you do. They have also known the potentials of bitcoin. They have known how fast bitcoin will grow if given free hands. They also know that their strongest weapon (centralization) is threatened by the existence of bitcoin. This is the main reason the government does not give bitcoin free hands to operate since they are unable to control it.
If the government has not found a proven and a reliable way to monitor and tax everyone using bitcoin, they can not be at peace with bitcoin.
I suspect that not all governments understand Bitcoin; those who understand Bitcoin and its benefits are those who accept Bitcoin as a means of payment; those who do not accept Bitcoin as a means of payment are those who do not have the right to control it in any way. I am confident that the countries that have not accepted Bitcoin as a means of payment will do so once they understand the value of it and how it will help many people in the economy; I am also aware that some of our leaders are investing money in Bitcoin. I believe in Bitcoin and believe it will take over the globe one day and is the best investment.