Of course, Bitcoin is difficult for most countries to accept. The reasons are many. This is the conservative policy of the States, the unwillingness to introduce new technologies, so as not to expose the existing economic interactions within the country and abroad to risks. We also know that almost all countries of the world have their own national currencies. And if Bitcoin suddenly becomes able to influence economic processes, it can affect the exchange rates of national currencies and as a result the economies of countries.
The unwillingness to adopt and the sole purpose of maintaining the authority inside financial aspect of a certain nation. Not every countries are open to this kind of new system, knowing that decentralized is being introduced which means that the control is no longer in their hands. Government mostly concerned with securities and assurance with high volatility of this kind of system it's really hard to other nations to embrace and allowed bitcoin to coexist with their current system.
sometimes also a country that is still unable to formalize crypto in it, because lags behind knowledge that makes some countries that do not allow crypto. I think in terms of government control it will be difficult if it does not have experts.
yes guys, moreover bitcoin has a bad record in the public, some people in my country kidnapped and asked for compensation with bitcoin, there is also an international case, which is a ransomware virus, which is a virus that encrypts a person / company data on their computer, and to open encrypted that, they have to pay a certain amount of bitcoin. so, it adds to the image of bitcoin getting worse for government.
This is the main reason why most of the countries are still unable to accept bitcoin, basically, they know nothing but all the illegal activities about it. They don't know its function, how it works, and its uses.
Lacking of knowledge is the main reason why adoption will never happen to most of the countries, if there will be a group of people or even the government itself will explain everything and will start a move to accept it, every individual will probably understand and will start to like it and more likely to use it.