Is privacy a concern if the monitoring is locally processed? Apple claims it is.
I say it's amazing how far we've progressed. We could've prevented an entire Seinfeld episode if cameras could warn the user of the presence of nudity in their photos.
That distinction isn't important. We could take it for granted that our conversations wouldn't be analyzed for sexually explicit content, and then companies like Apple normalized the opposite. We hadn't yet been fooled by "think of the children".