Disguises Should be More Common
There're 2 kinds of disguise, invented identities and impersonated real people, the latter is rarer historically (though has changed recently), so we'll focus on the conditions of invent identities.
- Player character identity isn't compromised/wanted.
- When being visible doesn’t compromise broader strategic goals, it’s fine. But if the player can’t be seen at all, then using a disguise isn’t an option.
- When player character appearance is common in that environment. Skin colors are shown through eye holes and fully covered wear is rare historically and inherently suspicious.
- When player character has a firm grasp of the cultural of that environment, this includes social behavior and dress code.
- When player character speak the same language.
There might be more, but these are the basics I can think of. If your player character meets these conditions, they should be able to disguise themselves. If it's not parted the dev's goal, then dev needs to change the game setting so using a disguise isn’t an option.
Game that I can think of that would be easier with a disguise:
- Lizard State
- MGS1
- Assassin’s Creed Shadows Naoe
- Mark of the Ninja
Most game with stealth element limit disguises to certain mission when it shouldn't be the case.