@mahgister - you may be right, but what does education have to do with liking or not liking jazz?
As for hating music, I agree - I don't see the point; people can listen to what they like and avoid what they don't - it's not difficult. People like different things, and it's not necessarily a 'learned' condition - people are individuals with their own brains and their own tastes. You can't make somebody like something they don't.