Google Glass is AR, not VR. VR headset are useful in very very narrower cases. Yeah, there is an initial wow effect when you first try Oculus Quest or similar high-end VR device, but after few hours playing, it is usually put aside collecting dust. And it is not like we haven't tried. These VR headset have been around for what? 10 years maybe? We have already tried some form in implementation in all these use cases you mention and the fact is that it is not a game charger by any stretch of the imagination. I think Apple should take a completely different approach towards AR and VR in general.