What exactly do you mean by that? Bitcoin as it is, aside from governments putting whatever ridiculous sanctions in place, can be used everywhere at any time. In some cases financial institutions and other related businesses aren't allowed to work with Bitcoin in whatever form, but that doesn't affect you as regular Bitcoin user. It's only that you need to be more creative when it comes to acquiring Bitcoins if you live in a country where businesses aren't allowed to deal with Bitcoin and crypto in general. You can either offer services here on this forum, participate in signature campaigns, look for people selling Bitcoin face to face, etc. No matter what sanctions businesses in certain countries are subject to, there are enough ways to collect yourself some coins.