alt Hacker NewsHmm, could you previously open a bank account, buy a SIM card, apply for a loan, or enter an airport without any of those cards? If so, I think it's plausible that the government responded by adding friction to daily life in a way that promoted Aadhaar. If not, they didn't.
My point wasn't that no id was required before Aadhaar. It's that any id from a range of acceptable ids like passports, ration card, drivers license worked.
Post Aadhaar, even though all of those IDs are still legal and acceptable under law, the govt has added so much friction on the non Aadhaar path that in practice those IDs are unusable.