Have you still remembered the last time you used cash? I can't ! If someone give me some cash, I even don't know how to use it, because most stores also don't have any cash for changing. If I visit a temple where once only had a locked contain to keep donative money, now there is a QR code instead. So, where has a wifi or date, there has E-payent. When I open my phone, there are several bank business apps service convenient business online. We can also get a loan in a few minutes via an app. Overall, any bank business you once need to go to a certain place to deal with can be done online now. So, for most people who can easily know how to use these apps , E-payments are their first choice. However, for the elder people, we need to care about their needs instead of forcing them to learn E-payments. Stores are supposed to service cash services for old people.