Told kid about nano-cam dust today. He's only 4 years old, so he didn't know about them yet, and I'm trying to teach him basic hygiene. I explained for that for nearly a a hundred years we have all lived in an environment where other peoples' cameras are always in our homes. We track them in, on our shoes. The AC intake blows them in. The servers the cameras send video too, aren't owned by people who are practicing subterfuge. It's not like they snuck "spy" dust onto our porches in the hopes we'd track them in. It just happens; it's an inevitable consequence of the stuff blowing around everywhere.
My great grandparents complained about it. They thought they had a reasonable expectation of privacy in their homes, because nanotech was new. They didn't see the dust, so they didn't know it was there. In the absence of sensual confirmation, the default expectation (at least to the layman) was that it wasn't there. That was naive, but my grandparents didn't work with nanotech or even use consumer models themselves, so perhaps their ignorance could be forgiven. (Just as my own ignorance of hyperspace can perhaps be forgiven, since I'm not a miner.)
My grandparents, though, grew up with the stuff, though it was still a bit expensive, so it wasn't totally ubiquitous yet. By their time, almost everyone at least knew about it, and if in a gathering of any five people you were to say "nobody sees me inside my home," chances were there would have been a few guffaws and someone would likely point out that the statement was likely incorrect. Sometimes the stuff got innocently tracked into your house, and sometimes it was manipulated into getting there, through subterfuge. The law and social norms lagged, though, and people debated privacy a lot.
By the time their children (my parents) grew up, though, it was all over. Everyone knew about nano-cam dust, and unless you did a rad-flash a few minutes earlier, fucking in your own bed was just as public as doing it in Times Square.
And now my kid knows too. It's just something everyone is expected to know about and deal with. If I were to write a story about it, I think I would set the story in the time of my grandparents, back when society was truly conflicted and in the midst of change. I bet those were interesting times.
