Comment by some-guy
5 days ago
Looking back and playing my Dreamcast again, I also believe the lack of dual shoulders (only one L and R) hurt because some games simply couldn’t be easily played with the standard controller (and not everyone is buying the keyboard and mouse)
You make it sound like dual shoulders were standard, but PS(2) was the odd one for having that. None of N64, Xbox nor Gamecube had them. It wasn't really until the Xbox 360 that you'd see it outside of Sony.
Now that you mention it, maybe I'm thinking more of the dual analog sticks than the shoulders. But yeah, Gamecube at least had a Z trigger in addition to the shoulders.