I'm a bit ashamed that a similar thought never occurred to me (that is, using something like glass for helping people with disabilities, instead of just recording first-person views of roller coaster rides).
I can totally see the usefulness of an always-on helper that can provide helpful cues, to, say, autistic children who have trouble identifying social or emotional context in certain situations.
I can see value here. Personally, I find it extremely difficult to pick up on non-verbal cues. Often someone will make a statement or ask a question that's primarily meant as normal social conversation "Got any plans for Memorial Day?" And it will confuse me more than it should. (Why are they asking me this? What good will it do for them to know? Do I have any plans? I'm going to look over some things for work but I don't think I'm supposed to talk about that. Oh shit, I never sent in that report, I better do that when I get home. I wonder if I can do it now, if my laptop is still on I can just connect through Screens. I need to set up wake-on-lan this weekend. Did I let the dogs out? What were they saying? Why are they staring at me. Better make a run for it!)
I don't know if this sort of tech would help me or not, but it'd be worth a shot to be able to dial my social awkwardness down to a 10 and even better if it could help people with real disabilities.
I can totally see the usefulness of an always-on helper that can provide helpful cues, to, say, autistic children who have trouble identifying social or emotional context in certain situations.