Let's wait what will happen if the Indonesian government forbids bitcoin. So far the government only claims that bitcoin is not a valid means of payment. What prohibition will they set, whether the bitcoin can not be used. Then how the fate of investors who invested bitcoin.
The Indonesian government forbids bitcoin to be used as payment, because according to the legitimate currency law is rupiah. however, I believe that the government will not completely ban it, because the government is getting interested in blockchain technology, and some big banks will adopt the technology.