You might want the cops to see your feed and the ability to have people automatically recognize, but these things can prove troublesome at scale. Consider, as an example, an anti-police violence protest campaign who holds a meeting at a private home to plan next steps. They might not be as eager to have their entire movement histories handed over to the cops because a neighbor consented or Amazon handed over a neighbor’s footage. Or consider a naturalized Haitian immigrant. They may no longer keep proof of citizenship on hand if it has been a long time, but some trace of an accent may linger.If ICE queries the database it can easily wrongly flag that citizen (facial recognition has high failure rates with non-white subjects) and you can easily trigger a pretty Kafkaesque nightmare when someone is unprepared to argue against a database they may not even know exists.
Facial recognition paired with large scale public surveillance is one of those things that develops massive problems when it scales because all of those low probability corner cases become huge issues. This is especially true when the product is changing after sale or when the company misleads about the nature of those features.
