The reason I mentioned learning about Haskell is because it allows you to realize that you should also learn to use Haskell :-) One cannot be expected to learn

The reason I mentioned learning about Haskell is because it allows you to realize that you should also learn to use Haskell :-) One cannot be expected to learn the thousands of languages out there. But learning a bit about many of them is possible -- and then learning to use the most interesting ones is most probably worthy.