hi there,
By now, you will have decided wether to learn cobol or not, but still, i'd like to throw in my opinion.
I have to study COBOL at my highschool
along with Java and some other languages that can be quite in handy.
It could be useful to learn Cobol, but not in the perspective of actually using it, but useful to be able to understand how back-end programming works. This 'rage' of object-oriented programming is indeed a great-opportunity language and it supports loads of features you can do with objects, methods, etc. I would though advise you (even though it isn't as pleasant as java) to take at least a look at these programs and the way they are built. It gives you another perspective of programming and it makes you capable of being an all-round programmer. COBOL is extremely old and yet it hasn't been thrown away completely. Instead a new branch has sprung, OO.
So, you'll have to decide for yourself, either you want to learn it and use it for some few cases or you don't. It's a choice of your own, but i think i gave you some arguments to think about actually learning it, it could broaden your view of programming.
I would also like to apologize for spelling mistakes and other grammatical errors you will have found in this text.