Why Bitcoin Prohibited to Become Payment Tool in INDONESIA ?

Virtual money that is popular in some countries, Bitcoin, considered to have a high risk. Bank Indonesia (BI) has also banned the use of Bitcoin as a legal means of payment in Indonesia.
Not explained in detail why Bitcoin is prohibited to be a means of payment in Indonesia. However, the central bank cautioned because the use of virtual money such as Bitcoin is very risky and BI is not responsible.
"What is clear is that we ban (bitcoin) as a means of payment," said the Head of Policy and Supervision Department of BI Eni Panggabea Payment System

As is known, in Bank Indonesia Regulation (PBI) no. 18/40 / PBI / 2016 on the Implementation of Payment Transaction Processing (PTP) explained that all payment system service providers (PJSP) are prohibited from using a Bitcoin virtual currency.
In some countries such as the United States, the use of Bitcoin as a means of payment to purchase goods or services is allowed or legal. But later some other countries such as China, prohibit the use of Bitcoin.
The issue of Bitcoin was also mentioned by International Monetary Fund (IMF) Director Christine Lagarde at the IMF-World Bank meeting in Washington DC last week. IMF is quite concerned because of the nature of Bitcoin is considered very risky, fluctuating, and because the basic technology has not been measured.
Bitcoin price in the global market is very volatile. Frequent free fall, but back up sharply. Today, its value has skyrocketed to 5,699 US dollars or Rp 77 million per 1 Bitcoin (data Coindesk.com). On September 14, 2017, the price of Bitcoin had dropped sharply to 3226 US dollars, or about Rp 43.6 million.
Based on the IMF's study of virtual money, there are several reasons why the agency is very concerned about Bitcoin.
First, virtual money is hard to control. That is, the current Bitcoin exchange rate is not necessarily the same as the next few years. The government and the central bank can not control it.

Secondly, Bitcoin is considered easy to use for fraud. For some people who understand, Bitcoin investments can be very profitable. But for some people who do not understand, very risky cheated.
In addition, Bitcoin is potentially bubble and breakable. Therefore, the fast Bitcoin price soar is very possible to fall quickly. Bitcoin is very likely to be used for illegal transactions. Because, someone who has bitcoin can use a pseudonym that no one else knows.
Bitcoin is also prone to use to avoid taxes. This is because the Bitcoin transaki does not require an authentic identity and can be cross-border. So it is possible that someone can invest their funds in bitcoin to avoid taxes.
While all this time, there is no body or regulator in any country officially appointed to regulate Bitcoin.