I haven't paid for anything in cash here in China for about 5 years or more. My wallet stays at home, along with my bank cards.
Everything I pay for is done with my phone via the Wechat app.
Even the poorest street vendor selling homegrown fruit & vegetables will have a QR code to scan to accept digital payment.

I was initially reluctant to move from cash to digital payment (you have to go through a bit of a tiresome process at the bank to register). However, I got fed up with going into shops, bars and cafés only to find they didn't have sufficient float in the till to give you your change (the staff would scurry off and try and find somewhere to get some change).