I am sure that when the future arrives, all payment transactions both cash and cash nominations will use the bitcoin system, because so far the progress of bitcoin for the world community is very positive, and the world community is very grateful for the steps of bitcoin. I hope, any country always supports the growth of bitcoin for a more advanced and modern world.
Although this is something that all bitcoin users would expect to happen in the future but the opportunity is too low, agreeing that bitcoin and crypto are gradually spreading in countries around the world but most of us know that people just stop at the level of knowledge about it, they do not want to use it or bring it to the activities of life. In addition, from the perspective and position of the government, they always refuse and do not support this system, this makes bitcoin and crypto very difficult to become a payment method in the future