If you go into a McDonald's in China there are self service touch screens. If you want to use these, the _only_ way to do it is with WeChat. You cannot use a credit card, if you don't have WeChat payments, you queue and pay in cash (this was my experience anyway). That's how ingrained WeChat is in Chinese society. You should think less about features and instead look at how it is actually used there.
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If you go into a McDonald's in China there are self service touch screens. If you want to use these, the _only_ way to do it is with WeChat. You cannot use a credit card, if you don't have WeChat payments, you queue and pay in cash (this was my experience anyway). That's how ingrained WeChat is in Chinese society. You should think less about features and instead look at how it is actually used there.