It's Becoming Harder to Use Cash in China

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Hi folks, it's Shelly Banjo. Sometimes you don't really grasp the ubiquity of something until you're shut out.

I spent last week in Beijing, where Tencent's WeChat has become inescapable for the roughly 900 million daily users (out of a national population of 1.4 billion) who use the app to do everything from chat with friends to hail a taxi or pay rent.