Bitcoin or etherum or any other crypto currency though very helpful but still are decentralised crypto currencies in almost all part of the world and therefore their use apart from investment is very rare and all around the world millions of people getting the advantage of crypto through its investment method and other uses of bitcoin or any other crypto currency like paying mortgage of your house or making any other transactions is only possible in those nations who has legalised crypto transactions in their country like japan 🇯🇵, South Korea 🇰🇷 etc