Bitcoin is still very illegal in many countries and to many governments, but in many of these countries, what is surprising is that you will still find investors in bitcoins who are going against the government and secretly buying and investing in bitcoins. An example of some of these people are members in this forum, so I am want to ask a personal question, do you think of yourself as a bad citizen for disobeying the government? Do you agree that you are a violator for breaking the law? Now see things from a religious side as well, by disobeying the government and investing in bitcoins, are you committing the sin of direct disobedience?
Your question is very complex. It is very important to follow the laws and policies given by the government to maintain the peace and order of a country. Investing in bitcoins without authorization in a country is a violation of the government's laws. It is better to try to invest in a legal way than under the law.