Functional programming is hard because some proponents of it spend more time on theory and proving why you should use FP than simply doing things with it. That

Functional programming is hard because some proponents of it spend more time on theory and proving why you should use FP than simply doing things with it. That's why most things shipped with FP is created with languages like Ocaml, Scala, JavaScript, Clojure, etc... You know, functional but more pragmatic and multi-paradigm.