I agree with you on everything except the privacy part, as people grow older they guard their privacy much more than as a youth.
I think it will be like everything with technology, we will be more the same, and more different. People might share some information freely as a bird that we would be horrified at, but I don't think the intrinsic need for privacy will leave society on some level (for a host of reasons).
Maybe this will manifest into something like "For Us The Living" with a public sphere and a private sphere. Go outside and you are 100% monitored by thousands of sources, but in your home or private dwelling things turn off.
Social mores evolve slower than technology, but they do evolve.
I think concepts of privacy are changing a lot and what's perceived as youth being cavalier about their privacy is just a reflection of a significantly different perspective.
Mostly I think kids are much more aware (though maybe not in an entirely conscious way) of holding on to several identities of varying degrees of privacy. They're better at segregating their lives into several online identities in addition to the one they physically inhabit at school/work/in public.
Not to say they are always successful at maintaining those boundaries. Really no one could be entirely. But they are much more active about it and it's a big part of their lives.
I agree, I probably should have qualified with "in public", there will be some areas of relative privacy. There will still be a security community; people who are skilled and need true privacy will be able to find it, bit I think they will be a small minority. Already many people are sharing from inside the sphere - data, media, text, etc.
I think it will be like everything with technology, we will be more the same, and more different. People might share some information freely as a bird that we would be horrified at, but I don't think the intrinsic need for privacy will leave society on some level (for a host of reasons).
Maybe this will manifest into something like "For Us The Living" with a public sphere and a private sphere. Go outside and you are 100% monitored by thousands of sources, but in your home or private dwelling things turn off.
Social mores evolve slower than technology, but they do evolve.