As much as I love the idea of the illiterate trait, there’s something about it that really makes no sense. How does your character know what things are if they can’t read? How does your character know that, say, a glass flask of mutagen isn’t really a glass flask of purifier if they can’t read the label? How do they know that the small plastic bottle over there contains Oxycodone, and not something else like Prozac? An illiterate person wouldn’t be able to tell the difference between a couple of white tablets versus some slightly different looking white tablets. Things like that. Item identification really kind of drives a big “wait what” into the game whenever I pick the illiterate trait as a challenge. Any idea on how to reflect all this?
Really, item identification in general is a big “wait what” in this game, the more you think about it. How, for instance, does a character with 0 skill in survival know that something is a datura plant, or bluebell, or poppy? How does a character with 0 mechanics know what an alternator or acetylene torch is? How does a character with 0 cooking skill know what a mutagen or purifier is, let alone tell the difference between a slime serum and a bird serum? How can a person with 0 skill in marksmanship and handguns tell the difference between a 9mm +P+ and a 9mm JHP round? My suggestion is to make identifying certain items require a certain level of skill, otherwise the name is withheld and only a vague description of what it looks like on the surface is given. On top of that, the illiterate trait should make a lot of items permanently unidentifiable, or just take a lot of effort to identify.
Perhaps books can be a source of item identification, much like how they are a source of crafting recipes?