I heard somewhere that over half of developers are new to the field.
What disheartens me is that the majority of developers care very little about programming. They care about things going out the door fast, quality be damned!
I never thought of Clojure as a language that would catch on to the 90% of shops out there. That's what ruby and python are for (and of course Java, but that's for historical marketing reasons.)
What I have thought the niche of Clojure and other languages like it are larger scale projects and established places that care about robustness and correctness. Where the wishy washy ways of the pythons and rubies of the world can can a real issue when not done correctly.