There are fundamental differences between physical and digital surveillance, namely when you are in a public space there is no expectation of privacy because there are other people there looking at you. When there are other people there that can actually see you, a camera also watching doesn’t make much of a difference.
it does
people usually doesn’t remember you unless you do some weird shit but once recorded, it will stay for the rest of eternity
If you’re talking about standard security cameras usually the footage will get completely overwritten after afeew days unless there was an incident to prompt review of the footage-- and even then it usually gets deleted at some point. Its not like with social media data gathering where they’re collecting all that information in order to build a personal profile of everyone-- security cameras just exist to review incidents that happen in the public realm and there’s no real incentive for a public transit agency to track every single person that appears on their cameras.