Screens have been popular since the first time they were effectively used to display moving pictures with a projector, "I want this, but small and in my pocket" was reflected as long ago as the original Dick Tracy comics and the original Star Trek. It's not like Apple invented the smartphone and then tried to shove it down everyone's throats.

Meanwhile Zuckerberg and 'Meta' seem to have a new fixation every few years. Last time it was 'The Metaverse' and crypto (and VR) and now that crypto is a dirty word for most people and 'The Metaverse' turned out to be the train wreck people thought it would be... it's just the VR. He's spent billions trying to convince people that they want what he wants them to be engaging with, and the market keeps telling him that they don't want it.

In case you're wondering that sort of feedback is what the meaning of, 'The Customer Is Always Right' really means. If you keep telling a market they definitely want your expensive new thing, and they keep not buying it... they're right, you're wrong.

You've never worn glasses, have you? Having something hanging from (or attached to) your head 1-2" from your eyes is quite a bit different than just looking down at things as one might do, including looking at a letter or one's phone.