The rules prescribed by a country, the rules governing the use of Bitcoin as a means of transactions that can be used other than the official currency held in that country, but for the value of Bitcoin there are no rules that can regulate it. because the value or price of Bitcoin is not affected by the regulations applied in a country, but the price of Bitcoin is influenced by several factors such as, Bitcoin is influenced by supply and demand in the market. So I think they can not control it and they can not arrange it. Even if that happens, people will make a way to get rid of this problem.