I think it's quite difficult and takes a long time. because we are now familiar with global money, namely the dollar and all countries in the world can accept it. While cryptocurrency has many rejections, only a few countries can accept bitcoin as a payment instrument. and all countries in the world already have national currencies so I think this is difficult. but there is still a possibility because we live in a digital era where all the necessities of life can be purchased online so that paying with digital money is not impossible. we just wait.