In China, you can’t exist without a smartphone, because for all existential things you have to do (paying bills, buying tickets etc.) , you are forced to use the almighty wechat app. Smartphones are a tool to manipulate and to spy on the population. It is a tool utilized by the ruling class, to control the masses. I hate the future and I hate “progress”.
I was in China two months ago. While WeChat and AliPay are ubiquitous, it’s not true that China is cashless. You can still use cash pretty much everywhere, but expect vendors to have to rummage for a bag of cash behind the counter then panic as they don’t remember how to count money.
But honestly, it’s not that different from Europe and North America. When I’m in, say, Canada or France, I’m using a Visa credit card through Google Wallet for absolutely everything. Not sure I trust Google and Visa any more than WeChat.