Maybe in that country, bitcoin is considered as the currency used for evil crime in cyberspace, example as drug trafficking, because sometimes selling drugs on the Internet is using bitcoin. In addition to drug trafficking, many money laundering and hackers using bitcoin. It is why some country prohibit the use of bitcoin.
I think every coutnry has their own pollicy and they have to follow thier police, but I think bitcoin is not yet banned in most of the coutries, therefore people are using it there freely, hope that most of the people will be thinking about bitcoin and hope that they will take a positive response about bitcoin legality.