There was a time when most people lived in small villages and everybody knew about everybody else. It was not a question of choice, you just happened to be known by all your peers and there was always someone to watch what you were up to. Then came big cities, individualism, privacy and other considerations that our ancestors didn't really have.
The world is changing and we are all adapting to it. I'm not going to make a value judgements about how good or how bad the new rules established by the Internet are. What really matters is how well prepared we are to live in a super-connected world and the first thing to do is to know what is this privacy debate about.