Here is a quote from Questlove, on why he feels it is important to teach. He's currently teaching a music course at NYU. I dig the quote, and it is why both my sons needed to understand the importance of all types of music:

You’re hoarding all this information, but have you taught someone that this is important?” The mistake we made is that the potent magic of the music I listened to when I was growing up would just somehow transcend mankind through the ages, like throwing a stone in a lake and watching it ripple. Now I realize that we’re the ripple. My goal is simply to teach 24 students how to enjoy music. There’s a wealth of knowledge and information on the internet and a lot of it is overwhelming and there’s too much to process. I just want to point out and say, ‘Hey, try door 36. Try door 513, that’s kind of cool’ then have them decide for themselves.