Bitcoin or other cryptocurrencies are illegal in many countries, but it does not affect the use of cryptocurrencies by the people of the country, because it is profitable for a large number of people, and they will not be distracted by the government's prohibition. With cryptocurrency, when some people use cryptocurrency to obtain huge wealth, I can always see that they have many ways to sell cryptocurrency and avoid monitoring by banks or regulators. This involves many illegal industries. I I don't know very well, maybe when you have a huge amount of cryptocurrency property, someone will contact you to help you sell the currency!