It’s not uncommon to buy products by digital currency in the whole world. And the number of people using Apple Pay or Alipay is dramatically increasing, so digital currency will kill physical wallet soon.
Advantages abound, one of which is its convenience. You do not have to have a wallet on you every day. You just pay money by swiping your cellphone, entering your PIN and sending a certain amount of money to the seller.
Furthermore, contactless payment system is much safer. On one hand, thefts would never steal your money so easily as they did before. On the other hand, fake money is no longer the case.
However, there are two sides to every coin. The biggest problem is that you must have your devices on you everywhere. If you accidentally leave your cellphone at home, you may feel hopeless because you cannot buy anything. Then you will live without the sense of safety that day. Plus, it is not accessible for old people. They are used to cash, and it would be a hassle when they do not know how to use the payment system.