Marginal Revolution notes a twitter thread about progress in India, one man's experience with no indication of whether it applies across the very complicated country.
1a. India is beyond advanced now as a cashless society! From street vendors to shops in the mall, everyone, everywhere is using Google Pay (or something similar).
— Dr. Karan Jani (@AstroKPJ) March 9, 2022
A sugarcane juice vendor on the Dandi beach gave me a look when the QR code scan failed as I didn't have it set up!
He doesn't describe a cause, but I assume the BJP/PM Modi would claim credit. I'd be curious as to how Estonia compares, being a country which plunged into the e-world years before Modi became PM.