unique_exemplar says:
Since I see there's been talk of rolling for ability scores, I don't think I've ever considered rolling straight down the line and keeping what's rolled in order. I think that takes part of the fun out of playing
your character. If I roll an 8 or 12 for charisma on my sorcerer, I think that's kind of a waste and will not enjoy myself as much.
Well, you don't pick class until you have your stats (I'm probably going Rogue, for instance, because I've got decent Dex/Con and I'm a half-orc and so prefer melee weapons). It relocates the fun of making a character from deciding every detail, to managing with what you get. Plus the chaos means sometimes you end up with something you never would've chosen that's fun to RP (like 6 Wis).