Alice--I agree with you re. learning vocal technique. I can sing classical choral music and show tunes, thanks to my mom and my high school chorus teacher. Neither of them approved of any music outside their particular categories and when I started singing rock 'n' roll as a kid, I met with much disapproval. And when I was telling my sisters and my mom of my winning the trophy for the Old-Time Country Music show' best female vocalist, my mom sniffed and said, "All those years of lessons and you're winning trophies for yodeling ..."
But I like music, period, and I like some of just about every genre -- if it's good, I like it. And if a song seems pretty to me or appeals to me for some reason, I'll try to learn it, regardless of whether it's in some "approved" repertoire or not. I don't want to narrow my world down so much that I exclude all but a couple of genres. But, I feel that way about people, too. I have lots of room for lots of different kinds of people in my life, and music is an expression of various versions of humanity.
By the way, if anyone reading this somehow equates yodeling with yowling or hollering or just making a bunch of goofy noise, well, you've never heard pretty yodeling. I go for a nice, lilting yodel that never sounds as though I'm calling the hogs, thank you. (At least I don't think it does ... )