Most people of non-African origin (a fact that helped pinpoint where the mixing happened and when) have 1-3% or so, the amount varying by person and region.

It’s been a while since I’ve played that. But yes, it’s helpful to see a graphical representation of where noisy things are, as I’m completely deaf in my left ear and can’t locate sounds.

Hard of hearing also. It’s so frustrating that text signs that list announcements are so rare.

Captions on television/movies and games are commonplace, but in the real world, very few places care.

Might be because I’m in a red state for a few more years due to family; blue states likely tend to be more aware of issues like ours.

I did see written callouts of upcoming tram stops once, but I can’t recall which airport. It may have been ORD.

Naval aviation is the general term for what you’re thinking of, and is the term used in the United States. In the UK, carrier pilots are part of the Fleet Air Arm.