There are in some countries that still prohibit the existence of bitcoin, one of which is Taiwan. Their government is afraid that bitcoin is used for money laundering and another reason is fear that digital currencies will be used as financing for terrorism. From all over the world few have banned, and in some other countries have developed bitcoin, because the more support from the public, the bitcoin will not be prohibited or deleted as the value of the digital currency.
Also they facing the pressure from China Mainland.With the high power of China.They are securing their transaction.But if you use bitcoin there will be no record of that.As you said they are fear those digital currencies should for those things.