As for me, I am just living in a cashless society.we pay for everything via payment APP on our phones.It is convenient and efficient.You don't need to go to a back to withdraw or transfer money.I even foget when I went to a 24 hour free ATM the last time.The only thing I need to do is to tap and tap and done. If you think the cashless society sounds great, I will tell you that we also can check our covid-19 test and these personal information such as :whether you got vaccinated or not, have you gone to some places where the pandemic is spreading in rencent 14 days.It helps us control the virus easily. But for some old people, this is difficulty.They don't know how to use cellphone, they give the clerks cash, but the clerks tell them they can't change because they don't have enough cash.We just focus on the benefits what the technology could bring to us and forget to care for these vulnerable groups. In addition,we became more and more selfish and indifference,we get into a habit of ordering takeouts on APP and giving negative comments to the deliveryman who don't send your orders on time,never care about the safety of the deliveryman who riding in a heavy rain.So, what is worth spending our time to think in such a cashless society is our responsibility.