The accessibility of a bideo gemu

Accessibility is something I have toyed with over the years (playing hacker I have occasionally been tapped to help such projects, and emulators themselves have some options to help here) but I am not sure about some of those, and that is even without getting into the spectrum of what counts (I have seen bright flashing colours bother some autistic types but be completely fine to dyslexic people).

For instance " 3. forgetting what to do if you aren't reminded by the NPCs available within range."
Forgetting to move a guy in a turn based strategy is a general failure of the person playing to play properly and is part of the fun, or perhaps challenge, really -- forcing yourself to continually evaluate all the options across the battlefield rather than become focused on a single push and all that.

Push to continue is an interesting one, though I would agree that giving people the option to read if it takes them more time is generally a good plan. Just give me the option to hold a button or toggle it to speed through.

Revisiting levels to master them. Have I made savestates and cheats to replay levels I want on my terms? Oh you bet. Have I noted such a thing as a failing when reviewing a game? Certainly have. Would I deny a dev the option to do it under the guise of making it accessible? No. There are plenty of valid gameplay or narrative reasons to keep moving and not go back, other than restarting the game, even if quite a few people fail at this.

First vs third person. It has been noted many people or east Asian/oriental extraction suffer from something like seasickness when games are viewed in first person. Not a game one but still a study on it https://www.ncbi.nlm.nih.gov/pubmed/8825456 . Might this be something like that? Likewise if the game can handle it (you tend to build a game with a camera type in mind) my preference would be for first person in most cases.
How do you get on piloting a ship or a car from the cockpit? Assuming the game in question has cameras with wide enough views that you are not troubled by lack of vision this is.

On voice overs (though as you mention text in the next line I assume you mean both) that will be fun in a year or two when it becomes reasonable to have computers generate a voice rather than having to pay out to have voice actors come in.

Not understanding what NPCs want... is this a game failure or a lack of ability on the part of the player (maybe one caused by said disability)? For instance I have an autistic friend who is clueless that a young lady might be flirting with him (and if I notice such things then you know it is overt because I am awful at detecting such things as well. The results of such things are usually hilarious as well as it comes off as indifference or apathy which really bothers some women and they get horrifically upset) and has similar trouble when watching films or reading books. Games being no different here I do have to wonder, though I would also have to check it is not just bad translation or something. On the flip side if a NPC asked for the fruit of a certain tree (there being a tree say earlier in the game that went unnoticed at the time) or used some language puzzle said friend is usually quicker than me at determining what is being asked for and such things are usually in my wheelhouse as well.

Checkpoints does lead to the other side of the discussion -- are you making your game too easy or do the features you add enable those to in essence* cheat?
*technically you are using officially sanctioned features within a game but most would agree to a statement of it is a least a failure of sportsmanship to use a colourblind option to help you spot things quicker.
That is also before we get into what aim assist might mean for those with say dyspraxia or struggle with fine motor control. Not to mention many of those with such conditions do take pride in being able to play anyway or work around it.

We did have a thread the other day on games that stop you from going back after a screw up
https://gbatemp.net/threads/games-which-actually-let-you-f-ck-up.562681/
Personally I would have something similar to say about that which I did about revisiting levels. Which is to say I have seen it done badly but I have seen it done spectacularly in other games, and removing it would stop the fun of the game.