This seems like such a losing battle. Payments on public transit could become anonymous, but the video feeds would still be recorded, and facial recognition could be easily performed. The cat is out of the bag. Information technology makes this data accumulation inevitable. Likely even for those who walk around with a face covering all day, pay only cash, and don't use smartphones. By doing those things you actually…
Maybe the answer is to turn the dial to 11 on information sharing and require data transparency from managers/leaders/public servants who operate data accumulation outfits. Track users' location data? Then your location must be public record & realtime. Etc. At the end of the day, this is about information asymmetry. If the general public loses privacy, then so should those who benefit from that information, in order…
This could be said for literally any transaction, ever. The bank knows how much money you have, but you don't know how much money the teller has. You don't know which books your librarian has out or what the bartender drinks. They are also citizens with their own right to privacy.
I'm all for transparency and oversight, but information asymmetry will always exist. Some industries have regulatory structures around that asymmetry to prevent abuse, HIPAA for example, and others have not.