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.
Just for the record though, it was created to be a used as micro-payment scheme.
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.
Doesnt't matter if US or India will not defined it as official or legal tender, because I don't think they will. Why it is that we need countries though to make it as legal tender? Bitcoin can thrive in another 10 years.
In general, it should be said that bitcoin cannot be an obstacle, and this is one of the advantages of Bitcoin.
Bitcoin has no barrier, if that's what you mean.