It will be difficult to convince people to adopt digital currency, because there are many limitations to studying digital currency. for example, not all people understand about the internet and how to use it. it maybe easy for middle and upper class people who understand about the internet, and want to learn about digital currencies. but what about the middle and lower class people who are less knowledgeable about it. difficult. there must be an introduction to them before introducing digital currency directly. unless people in the world will change to a new generation, new generations are obliged to use digital currency for transactions, and begin to leave conventional currencies.