Before the existence of bitcoin they're many other digital economic assets that is in line with government policies like crude oil, gold and much more, government where comfortable with this assets trading online, including forex but crypto currency like bitcoin that would have change lives and alienates poverty from the world, government are afraid of its cumulative value.
The government won't immediately adopt the concept of Bitcoin since it grants everyone financial freedom, whereas the government is only interested in the meager revenue it can raise through taxes.
Crude oil and gold are traditional trading goods that are still in use, but the concept of Bitcoin has eliminated the notion of gold investment for young people since they now perceive it as being safer than investing in actual assets like gold.
It is obvious that government will be hesitant at first. Just imagine how many years it takes before Bitcoin become the concern of the government? How many years it takes before the first government that accept it legal tender appear?
Bitcoin being a newly emerging industry and its decentralized nature make the government hesitant about it.
Bitcoin is not dependent on anything,
Bitcoin is dependent on its developer, miner, and community. Any one of it missing will make Bitcoin collapse but surely Bitcoin is not dependent on the government.
but I think if all governments accepted Bitcoin, Bitcoin could go far.
Not only far but will also dominate the financial industry competing against the dollar as a widely used currency.
Governments of every country act as a centralized organization and they consider Bitcoin as a decentralized cryptocurrency.
The government doesn't just act as centralized, they are centralized organization that has authority over a country, it is obvious that Bitcoin isn't centralized so there is no need for the government to consider it as decentralized because it is really a decentralized cryptocurrency.