The German version is very similar, except that Wolfram added quite a lot to it to make it into a finished story. Would recommend it if you're ever in the mood to read it!

You've read the other Chrétien de Troyes stories too then, haven't you? Awesome! I love those as well. Although, maybe not Erec and Enide, but that's mostly because I had to read that one for almost every Arthurian lit course I was in, so at some point it became a bit tiresome.

Yes, you're right that the main character of the story usually does mess up in some way. However, they mostly mess up morally. They're all trained knights already, so their fighting skills are up to par, they just need to learn a bit more about loyalty, fidelity or honesty, or something like that. Perceval, on the other hand, doesn't know anything. He grew up in a forest, so he doesn't have proper manners and wins his first fights mostly with luck and some hunting skills. He only gets his first lessons in etiquette and sword fighting later in the story, and only then can he start on his moral improvement journey. That's what I meant with him not being as competent as the others. I should have explained myself better before.