"Anything is better than nothing" is exactly the point. We are talking about businesses that run on a shoestring here. Peddlers, street vendors, people who may not even have a phone of their own but one of their family members does, and that's whose QR code they have printed out to accept payments. In a society where nobody carries cash any more, the best you can hope for as a bottom-rung vendor is that your customers aren't desperate enough to try cheat you out of a few kuai.
At the next level up, of course, vendors will have their own phone so they can check their notifications to make sure that a payment went through. And that is a big step forward for vendors in developing countries - there's no risk of receiving counterfeit currency with electronic transactions.
Unfortunately the bottom rung can least afford the fraud.
If the currency is good enough to fool a street vendor, it’s probably good enough to spend with their suppliers. Not like they’re sticking it in a bank. I suspect those street vendors are also not accepting bills so large they’re worth counterfeiting.
Chargeback fraud of course being more likely with credit card payments - but again, unlikely for small vendor transactions. It’s not worth it for anyone.
The argument that people don’t carry cash anymore is certainly real enough - and the beggars/window washer at a red light types are the most impacted rather than real merchants.
At the next level up, of course, vendors will have their own phone so they can check their notifications to make sure that a payment went through. And that is a big step forward for vendors in developing countries - there's no risk of receiving counterfeit currency with electronic transactions.