There are many countries where bitcoin is not accepted legally, so how do you use bitcoin in that country? Usually if you raise the level of bitcoin use in that country then you may get into legal trouble.
So how do you use your earned bitcoin in that country.
I guess the best thing is not spending it since bitcoin is not legal in that country for sure it would make sense if stores in that country are not accepting bitcoin.
Either though you could still spend your bitcoin online on a lot of websites that are accepting it, I'm sure you could still invest in bitcoin even though it is not legal in your country.