Not really. Bluedouches are so self-involved that they don't realize and/or care how annoying it is for them to walk around in public (apparently) loudly talking to themselves. Normally, we only excuse this behavior in schizophrenics.
There was a time when vision correcting glasses were considered very strange I would imagine, but they proved to be very useful and we become accustomed to seeing them. What will be fun, I think, is as others have postulated wearable tech becoming less apparent to the naked eye, so much so that the plastic brick will be considered odd, and that one would WEAR vision correcting lenses mounted in metal or plastic frames right on the face?!
You are certainly not being any safer. The act of engaging in a phone call is what is distracting, not holding a device. Don't kid yourself.
http://www.usnews.com/news/articles/2013/06/12/aaa-study-usi...
http://mentalhealth.about.com/library/sci/0701/blcellphone70...
http://www.alertdriving.com/home/fleet-alert-magazine/north-...
http://www.mindthesciencegap.org/2013/03/14/look-no-hands-is...
Further, nobody is talking about people who use these technologies in private, they are talking about people who are using them in public.
I really don't see the difference between me talking to a friend in public when they are next to me, at the end of a phone call mediated by a handset, or a phone call mediated by a bluetooth headset. The volume of my speech is the same in all three cases, so I have to assume some people are upset that they cannot listen to both sides of my conversation, and become annoyed with the phone/headset scenarios when they are unable to eavesdrop?
Second, I don't think it's a matter of eavesdropping; rather, it seems harder to ignore a half-conversation than a full one, because the latter is normal and expected. Maybe we will eventually become habituated, and in another 10 years we will all be walking around talking to our glasses, watches, or whatever, automatically ignoring each other.