Not sure how it will be bigger than mobile. In public I won’t be donning one of those headsets, but I will pull my phone out to comment on hacker news, or scroll news articles, etc. I don’t think my scenario is unusual.
For many, not being seen via an avatar will be akin to feeling unclothed. It will be strange and unlikely to be fully accepted by people who are above a certain age.
the implicit premise is that the category (AR/VR/XR) remains the same but the technology improves until its better for pretty much all usecases we currently use 2d screens.