The discussion on the issue of game difficulty, and not enjoying games/game genres because they are too difficult, was really interesting. I actually have a small personal anecdote on the topic:
A few months ago I started a new campaign in StarCraft 2, and my girlfriend happened to look over my shoulder. She is an avid gamer and we both spend a lot of time playing games together in co-op, or the same game at the same time. However, she generally does not play strategy games, and had never even touched the original StarCraft. What had piqued her interest in this case was the story told both in cut-scenes, and as part of the missions.
I decided to give her a chance to experience the game on her own terms and we bought the game for her (not a hard decision for her, since she also got a WoW pet out of it). After initially trying, and failing, playing the game on Normal difficulty, she switched the game to Easy. I helped out a little by giving her hints for the missions I knew, and she soldiered on and really seemed to enjoy the game.
At the same time, I was playing through the campaign on Normal difficulty, and as I had in past attempts, I was struggling with certain missions and mission goals. In my previous attempts I had grown frustrated with this, put the game aside, and played something else, not returning to SC2 for weeks or months. I had experience the same issue with the original StarCraft on several occasions. Add to this the fact that some of my friends have the wonderful ability of making me look utterly inept and idiotic when playing RTS games, and you can understand that my enjoyment suffers.
But this time I took a page from my girlfriend's play-book and turned down the difficulty. Seeing as she had progressed further in the campaign than me in the same time-frame as well, I switched to Easy and was finally rewarded with success and parts of the storyline I had not previously reached. I am still not sure why I remained so stubborn until then.
As an end result, my girlfriend has almost completed StarCraft 2 on her own, a game in a genre she generally never touches, although she still loathes RTS multiplayer. I have finally been able to complete the game and enjoy all aspects of the storyline. I have since begun to complete individual missions at higher difficulty, simply to gain the achievements. Having previously seen the missions and the storyline, I am a lot less stressed about the occasional failure. Adopting the same behaviour in other games has had the same effect there.
But yes, that does not mean that Dark Souls should have an easy mode. There must be some things in life that simply kick your teeth in until you learn your lessons.