Given the nature of this digital currency, there are always conversations to be heard about not buying Bitcoin, as Bitcoin works outside the traditional banking system, so there are too many opponents to it. However, its design is such that no one can create a particular barrier to buying it. If you have access to the Internet and a Bitcoin wallet, you can invest in buying Bitcoin.
Many countries have struggled to obtain this digital currency. Bolivia, Thailand, Vietnam and Bangladesh, for example, are all trying to obtain Bitcoin. Even more advanced countries such as Russia, Japan, Australia and Venezuela have attempted to legally sell Bitcoin. But it is interesting to note that some countries, such as India and the United States, have not yet taken action in this regard and have not yet defined an official policy on such currencies.
In general, it should be said that bitcoin cannot be an obstacle, and this is one of the advantages of Bitcoin.
The countries which have not adopted crypto yet are still not fully familiar with regulating cryptocurrencies.
Many countries are worried for their citizens and that it will increase the amount of online fraud.
Many countries are still worried because cryptocurrencies like bitcoin is a strong competition to their tradition fiat currency.
Many countries are worried that it will increase money laundering and corruption.
While these countries are facing such issues I am positive that they will find a way through it and will soon adopt cryptocurrencies.
Some countries have already started the adoption of cryptocurrencies and other will just follow their lead.