Wrong, many people still do use cash, up country villages that used to have an ATM allowed people to draw cash locally, the small family shops there all work on cash, 5B, 10B sales etc. Now they have to travel to the closest city ATM and end up buying there in big shops. Small shops in crisis, but the Banks are only interested in $$$$$$. So go ahead and use the China method of tracking its people, know where and when and how much they spend. Big brother is watching.