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by esperent 285 days ago
On the way towards the same issue in Vietnam. You can still pay with cash everywhere but it's becoming more and more normal to use QR codes. I guess in the next year or two I'll start to see places that only take QR. It's very convenient... unless you don't have a local bank account, or your phone runs out of battery, or, as happened to me 30 minutes ago, your bank's system goes down.