In most cases, this is due to inflation and the opportunity to make money on the growth of Bitcoin. Inflation is a rather acute problem in developing countries. The point here is not in the government or the leadership of the country, namely, that many people want to save their savings and also earn. Cryptocurrencies made it possible for many people in the developing countries to get rich fairly quickly. In developed countries, people live better, so they didn’t grasp that opportunity at the time. They simply had no such incentive.