Yet our old paper money remains steadfast. Even in 2020, that most futuristic sounding of years, legislation has been passed in New York City that obliges brick-and-mortar businesses — in that most global of cities — to accept cash. Other U.S. cities and jurisdictions have enacted similar laws. Although slowly declining, cash remains a preferred payment method in this country. Federal Reserve research shows cash remains one of the most used payment instruments, and — perhaps surprisingly — young adults are embracing cash, with those under the age of 25 using cash for approximately one third of transactions.