And for those rare places that only do cash, it's not uncommon for the person in line to turn around and ask a stranger for cash and they'll pay that person in a WeChat transfer. Done in seconds. Happened to me and observed it myself a couple of times.

With digital wallets, there's zero need for credit cards and their predatory interest rates.

China is just absolutely crushing it. The Amazon Self Serve store that's still in testing in USA? Tao Bao pushed their version and it went live last week.