All positives are accepted.
Concerns --
- Cronies of government have captured the technology stack making themselves key players that can control and monetize this space.
- Traceability of all petty transactions -- enabling building of super rich profile of individuals / orgs -- ripe with potential for misuse.
- Leaving a trail of your PII like name / UPI ID (which in some cases is your mobilenumber@upiprovider) / last few digits of bank account number etc with all random people you transact with -- like taking a rikshaw ride or buying potatoes in a street-side vegetable market. (99.9% of these are harmless -- but the small fraction can invite intrusion / enable harassment)
- Over enthusiastic adoption of digital payments to the exclusion of other options forcing people to use apps. And the newer payment mechanisms -- opening newer avenues for scamming the less savvy / elderly / vulnerable.
- Pushing this change to people rather than letting the benefits and convenience naturally lead to adoption -- after the flaws are slowly uncovered and fixed through early adoption by savvy people (see Demonetization of 2016)
- This blind worship of technology as a silver bullet that cannot be criticized (or you are labelled a foreign-sponsored detractor / anti-national / india-hater whatever) extends more broadly into adjacent areas like the Aadhaar national ID system, linking of it to all spheres of citizen services from birth to death including voting rights and banking.