Got a phone for that and I hate video calls.
Somehow I don't see any benefit to having VR or AR for that, exercise is work and doesn't need any alt-reality help. I can kind of see something like a peleton and riding a stationary bike, but that's still seems too gimicky to me.
Er, isn't the idea of a live event to be there in person to see it for yourself.
As for entertainment, yeah maybe, but the necessity of having that hanging on your face seems like a hinderance to me. Give me a good TV and a good speaker system and a room to use them in, that seems a better idea for me.
I worry about focusing on the eyes too much, there's just so much variation in people's eyes that it would all be total guesswork finding a set that would work for individuals. For instance, I don't have that great of vision. When I was younger, I had nearsightedness and astigmatism, now, after cataract surgery, I have eyes tuned for computer work, and to top it all off, I have Duane syndrome. Duane syndrome is a eye muscle problem from birth that means my eyes don't focus together, nor even track together. (when looking through a particular eye, the other one turns in, kind of like cross eyed on that side.) I'm an extreme case, I know, and probably can never use something like this, but I think people underestimate how differences in vision run the gamut of possibilities and VR makers would have to be able to adjust for various difference and I'm betting that they haven't even thought of that yet. Up to 20% of people don't even see in 3D for instance. At least out in real reality <g>, we all have our ways of adjusting to the circumstance, but in a fixed focus screen plastered in front of our eyes, our brains just wont be able to handle it.
Eyes and vision are one of the most complex things I know of. Only the brain is more complex, and that's what you really have to fool, no matter how the person sees.