In my opinion, BTC is not a traditional currency like gold and silver because it does not have any use value, so it is not a credit currency. It's basically just one use, money laundering tool. The tool explains why bitcoin prices are spread across the country and abroad. Domestic money is changed into bitcoins and then physical transportation to overseas exchange for foreign currency escapes regulation and the cost of money laundering is lower than before, and the risk is low.
Well Bitcoin and Crypto currency are very usefull illegal tool before but not only for money laundering but for all illegal activities specially scam projects that they use Bitcoin platform as a tool to steal the hard earned money of the people. The good thing is that this was happen before in which during the time that the regulation is not supported but now most of the Bitcoin users are fully supported the government regulation polices to ensure that Bitcoin will not become an illegal tool.