I personally believe a cashless system is coming to a blockchain… With the ability to track on chain transactions, taxes will no longer be avoidable via cash payments. A digital dollar will likely deter illegal immigration and the use of undocumented workers… This could be the future we live in. https://www.foxbusiness.com/money/fed-partnering-with-mit-to-develop-hypothetical-digital-currency#:~:text=The%20Federal%20Reserve%20Bank%20of,two%20to%20three%20year%20period. Digital Currency Initiative -> https://dci.mit.edu/

Answered question