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.
if the government thought that way, they should also prohibit their own currency, because currency of each country is also used for illegal activities?
I think the government has another reason to prohibit the use of bitcoin