I danced when I was in elementary school, though. We had a dance team(ish) headed by one of the moms and we would do halftime shows during basketball games. I was eleven or twelve at the time and did ok, but my parents went with Karate due the potential value as an adult.
I started gaining weight after I hit puberty and my metabolism slowed down. By the time I was an adult any "graceful swan" action was long gone. Taking group classes in exercise let alone dancing just made me feel like a cow; so I just stayed away. Flash forward and here's me. 300+ lbs and still struggling. So: it's something I think I'll enjoy, and if I dance in my bedroom I don't have to worry about looking like a cow.