I love to dance, and if I had had this love at your age, Ballroom Teen, I might well be interested in the possibility of teaching ballroom dancing. But if I could bring to bear the perspective of extensive exposure to higher education (I'm a Ph.D.) and age (68), I seriously doubt that, were I a college student (again), I would want to expend the money (tuition and room and board, books and various fees -- plus the lost opportunity to use the time involved for class and study for earning money) for college courses on doing and/or on teaching ballroom dancing. I don't see the return. I would pursue my interest in ballroom dancing through other avenues as the way opens. I would use college courses, to the extent possible, to acquire knowledge and competencies for which there be a good prospect of a favorable financial return on the investment of time and money.
Best wishes -- jb