There is a world, because when the displays are high quality and they're thinner and lighter, they're going to replace phones, and almost everyone will be wearing them.
I think that since the input modalities are (seemingly) restricted to eye movement and sound, that it is impractical to replace a phone, where someone can engage privately.
Are they going to be as hard to keep clean as glasses. Honestly it’s the biggest problem I have with sunglasses, it’s that as soon as you get a speck of dirt on them they’re annoying. And if it starts raining you can’t see anything (and you look like a tool).
It doesn't matter how high quality, convenient, or light they are, as long as wearing glasses isn't inherently cool, normal people aren't going to choose to wear them.
Nah, I don't see it. They've been trying to make smart glasses a thing for over a decade and it's not working. Nobody wants them. I don't think it's necessarily a privacy thing, it's just that smart glasses don't solve a real problem. Same with VR.