The weight is important but it's only a part of what's wrong with those kind of devices. Wearing something that hides their face is something that people do at Carnival or because they must. It's antisocial. It creates a barrier. It isolates from other people. There is no chance it will become something people will do together with other people not wearing the same device.

Agreed, that’s the other big reason I didn’t mention: most people don’t want a screen on their face. They don’t want their face covered, they want to see out the window or just what’s around them.

I have never seen someone wear a VR headset in public that wasn’t part of a mall VR novelty attraction.