I mean I get what you mean, but I also think that some things get normalized in subsequent generations. Our 15 year old and his gf have their phones out at all times, frequently switching to interacting, glancing at random videos, messaging, games, etc. Unthinkable 20 years ago, but for them it's tuesday.
That said, VR headsets have been a thing for a while now, at all price ranges; Google Cardboard and clones would make any smartphone into a rudimentary 3d headset, but as far as I know nobody normalized that into their daily life to e.g. watch videos. Head-mounted DVD players were a thing as well for a while I think, but again, never became normalized. Google Glass was the first 'big' AR system, and it was hated for being so obvious and its wearers being so blatant in glancing one way and having a camera aimed at you (which might have been recording) at all times; it might be interesting to see what today's iterations, Snapchat's Spectacles [1], Facebook / Ray Ban's Stories [2], Bose Frames or Amazon Echo Frames will do, I think they'll be much more accepted because they're not as obvious.
[0] I had to edit that one a few times, had to think about when mobile phones became daily use items
[1] https://www.tomsguide.com/us/snapchat-spectacles-2-0,review-...