Why Isn't Haskell Used by More People?

i can't find materials that are geared towards learning it asa someone who's a professional programmer and not with no academic interest. I really, the kind of weird thing is that it's being used in industry despite that very intentional academic focus. i don't want to like, point fingers and say that it's being taught wrong. That's whe it comes from. It was built by academics for academics. So why, how could it not have an academic focus in like, the and how it's taught?...