How rapidly are cashless transactions spreading in China? When I was there back in 2011-2012 everything was exclusively cash-only. I'd be interested to learn the rate of change in recent years.
What surprised me was the proliferation of Alipay in premium outlets near touristy areas in SF.
Basically overnight. Reason? 1. Alibaba and Tencent basically paying cash for people using their system; 2. POS terminal charges for them are near nil in comparison to rapacious rents Visa/MC processing banks were demanding just a year ago.
I know in China they also like ubiquitous tracking of people, and maybe the us govt would like that too.