[Aerroon]

We actually had a functional programming class in university, where the focus was on Haskell. The main impression that seemed to permeate the class was "Haskell is hard". There was a lot of grumbling. Nowhere near as much as about Prolog in Logical Programming though. They were both thrown into the same pile of "must get through this class" though.

I'm not really sure whether it was because of the way it was taught or whether Haskell is inherently more difficult. I do think that a class like that might've hurt the language's adoption among the students though. (Or maybe my impression is simply biased by my own experience.)