Using Art in teaching-learning

Why should art be taught in schools? Obviously not every student becomes an artist. There is a limit to using arts to teach other subjects. And as for the attitudes and ways of thinking that art develops, there are other ways too to enhance human values. So why teach art? Art helps all of us, even the non-artists, appreciate beauty and express emotions when we find words limiting. And that is an important thing to learn in today’s world.

Why are humans drawn to art that generates negative emotions like sadness, melancholy, horror, fear, disgust? Shouldn’t we avoid art that depicts behaviors and attitudes that we find reprehensible, or abhorrent?