I disagree with the idea that every game should have a difficulty option. If the difficulty is there just for the sake of challenge, then difficulty options should be there because in that case it's not all that different than setting self-imposed rules for additional difficulty. But when difficulty serves a bigger purpose I can absolutely understand keeping a standardized experience.

For example in ARC raiders the ARC are so dangerous that they've pushed people underground and going topside is this risky endeavor. But if the ARC were pushovers you get this narrative dissonance where the enemy is supposed to be so dangerous that humans can't thrive but when you fight them they die instantly so why can't humans thrive? ARC also pose as a balancing act to the game because if the ARC weren't dangerous the game would just be PVP with looting. You have to take ARC seriously even if you know how to deal with them because of how easily the script can be flipped on you. ARC raiders obviously doesn't really have difficulty options because of its multiplayer nature but it does show that difficulty can have a narrative impact and difficulty can impact how you approach the game. If the game was easier it would arguably end up as a worse experience.

And difficulty can also be used to make you feel a certain way. This is why I've argued against Dark Souls needing difficulty options (and to be clear, I'm talking about ONLY Dark Souls 1). There's a reason some people call Dark Souls a cathartic experience, because that's what the game is going for. Lordran is a world in despair. The end of an era is coming and the world has been plunged into decay. The denizens of Lordran have fallen into despair, given up and hollowed. And Dark Souls wants you to feel that. Dark Souls wants you to feel the despair and find the will to continue despite that despair, lest you become one of the hollowed people of Lordran. The game is challenging specifically to make you feel like you're being treated unfairly, like you're against impossible odds, like you're supposed to fail, like there's no point playing and just give up and never play again. Because when you eventually overcome that unfair and impossible scenario you've failed a dozen times all the emotional tension gets released and you achieve catharsis. If you don't feel the failure you can't feel the catharsis thus by making the game easier the game loses a part of what it is.

Dark Souls is not just a game, Dark Souls is a piece of art. We give other art the respect to be their own thing. People accept Kafka novels are hard to read. People accept The Downward Spiral is hard to listen. People accept Requiem for a dream is hard to watch. But when Dark Souls is hard to play we complain? I say let art be art. If we want to treat games as art then every game can't have difficulty options. Some games can, will and do use difficulty in a way that elevates their artistic vision. In my eyes denying games the tool of difficulty is to deny that games can be art.