Do children learn the value of privacy by having it, or because theirs isn't respected?

In my experience, there's a lot of the second.

I can't help but think it's in significant part survivorship bias.

I mean, I've seen this sort of controlling behaviour carry over for three generations(that I know of) among my relatives - the person to (hopefully - the jury is out on that) break the chain moved countries.

Someone also needs to raise the future people who do the nice work at the NSA, FBI and the likes..