Tbh I don't even mind cameras that much if they were entirely controlled by the individuals themselves. I have a much bigger issue with it when you're streaming my facial recognition data to Evil Megacorp 2™ servers that also feed directly to the "Not Spying.. Again" agency, though.

I don't think that would work particularly well with AR: People get sick if movement isn't synced up properly, not having any sort of cameras or sensors at all would exacerbate that problem.

If you are talking about a simple HUD, then that might be a lot more viable, but for AR and the tech we currently have, some sort of camera or sensor array is kind of a requirement practically speaking.

Except that one cool thing with AR is being able to have it tell what you're looking at is. Not just positioning things in space. A lot of cool shit that could be done with AR, like real time text translation, object identification, etc needs some kind of camera, even if it just sees IR light. Lotta cool shit needs a microphone, too.

GNSS isn't really accurate enough for this, especially in urban environments where there is poor line of sight to most of the satellites.