The most obvious reason for the government to ban Bitcoin is that it is not regulated. This is due to the confidentiality of Bitcoin, which provides convenience for some illegal organizations to conduct transactions, money laundering and other activities, and may accelerate the development of illegal organizations! Have an adverse impact on the country's economic development.
The government should immediately ban everything illegal organizations may use for their villainous purposes. For example, roads. How do you regulate roads? How can you prevent criminals from driving automobiles? The only way you can do that is by prohibiting automobiles and the use of roads whatsoever. Honest people who used those in their everyday honest life are now punished too. What else criminals can use to launder their dirty money? Banks running by corrupted bankers! Let us prohibit the use of banks as well as the dollar itself because it is considered the most convenient currency to transact anonymously. It doesn't matter that honest people spend their entire life hard working to earn "dirty money of banks" to feed their family. We should ban the dollar because someone unwanted used it too. You are not, however, demanding to ban all of that. Instead, you want to ban the only currency that helps honest folks to save their hard-earned money, that protects them from inflation and corrupt bankers, who, as we learned, have been so far busy laundering dirty money.