Any good argument that anyone can think of for a scenario where smart eyewear will not be as ubiquitous as smart phones eventually? I understand the privacy argument, but that is not going to be enough. The ability to think or blink in a certain way and capture anything you see is too powerful a tool, alongside the augmented reality that is coming.
Not all of us spend our days walking down urban streets, having a desire to have the things around us augmented. My smart phone spends 98% of its life in my pocket because I don't want or need any application most of the time. I've tried adopting a smartwatch on multiple occasions and never found it offered me any value. All it did was convince me to turn off a bunch of notifications I didn't need to be getting to begin with.