If all countries, including banks launch cryptocurrency buying and selling cryptocurrencies the cryptocurrency will improve and therefore the demand for Bitcoin will increase. In my opinion not just Japan but the UK China and Malaysia will help it spread among the people to enhance their economy and industry Bitcoin does tons of excellent work and without it the crypto market is going to be at its peak when the whole world is spread.
I agree with you that this new service will bring Crypto to its peak Will gradually support each country and meet decentralized needs. The United States or the United States is launching this system to improve the economy of their country.