I do not know, in China I do not think nowadays that is common to use cash, they actually perform electronic payments generally
Not only China, many developed countries have also restricted the use of paper money and switched to digital or card payment methods. But the complete elimination of paper money is unlikely to happen in the next decade because in many places it can be said that the internet is limited, and smartphones are not yet widely used, so getting rid of paper money is very difficult.
Even in my country, which incidentally is a developing country, has implemented a digital system, but only in certain shops. To be honest, so far I'm more comfortable using digital money than paper because people won't know the balance we have, whereas if we use paper money people know better how rich we are. But in terms of loss, the biggest potential is digital money. If you have a problem with your e-wallet, the money you have will be forfeited. but so far I'm doing fine using digital money and hopefully no issues.