I think it can be learned - but one needs to have an open mind. If one has learned how a specific program look like in something like PASCAL and then later learns Lisp, there are a bunch of concepts which need to be adjusted...

I started with BASIC, various Assembler variants, PASCAL, UCSD PASCAL, MODULA 2, ... and then learned Lisp variants and Scheme - and also learned basics of some other languages like ObjectPascal, SAIL, Prolog, Postscript, Smalltalk, ...