Cash money , coin and paper bills ,1$,2$, 5$, 10$, 20$, 50$ , 100$ , 1000$ etc , in Hand is important . It means that any transaction that you have done or will do is private . And That , is a fundamental Freedom given to all Human Beings . If the Cash System of money is shut down by a Cashless System of money , debit , credit , card System then we can All be tracted , Hence loose our privacy . And identity .