What's the point of listening to music?

Sure, it's "fun" when you're 16 and have nothing else to do than to find the most obscure band like "Nirvana" and listen to it to pretend you're "cool" in front of your friends, but why do some "adults" still listen to music? Why do so many 20 year olds still act like children, wearing jeans, playing video games and listening to music? Atleast jeans+tshirts have some benefits over proper clothes, and video games are somewhat interactive. But what is the point of sitting on a chair and listening to some black man singing about prostitutes and drugs?

Someone doesn't like art