Back in the 20th century Jacques Cousteau organized an undersea living pilot. People lived in spacecraft-sized underwater containers for a while, then the project ended. The remains can be seen in photos, or in video (below).
The ancient lake of death: Atlas Obscura has a good update on the Lake Roopkund massacre. 200 skeletons found, all killed in a single, remote location. What happened?
Trapped in the valley with nowhere to hide or seek shelter, the "hard as iron” cricket ball-sized [about 23 centimeter/9 inches diameter] hailstones came by the thousands, resulting in the travelers' bizarre sudden death. The remains lay in the lake for 1,200 years until their discovery.
While some wearers might be glassholes and some might be glassed-out (and some might be both), a better characterization of this new trend must come from elsewhere. The proper analogy for such an uncanny being is not the jerk nor the junkie but the zombie: neither living nor dead, but suspended interminably between the two. Wearers are neither present nor absent, neither here nor there, neither in-person nor on-line, neither attentive nor oblivious.
That's a very different image than the glasshole one. It's ethereal rather than offensive.