When I was a kid, before the Internet, we had no idea what our friends were doing unless we picked up a landline and called them to find out. It made school more interesting too because we got our "updates" on each other there.
As one who lived with and without the Internet and the "digital age" as a kid/young adult, I can say that this generation really has no idea about what real privacy is and they also have a real sense of self-importance. It is almost laughable at times. The only thing worse is when these kids get their parents doing things like Facebook or MySpace or Twitter. Akwaaarddd...