Who are the adversaries of dance? The book,"Adversaries of Dance", by Ann Wagner, University of Illinois Press, 1997, identifies them. The book gives an improbable assortment of reasons given by the adversaries of dance themselves for their opposition. I am not convinced. I suspect that in the case of the least fundamentalist of them that the real reason is that they are in the business of selling respectability, and the ballroom dances could lead to dress up balls that would compete in the respectability market. They had experience with such balls that were prevalent in the 1800's. It is my impression that they are not as concerned about the swing and latin dances or the obscene dances seen on the television channels that show music videos. They are more likely to use their influence to prevent a television show featuring ballroom dance. They seem to be the most likely explanation for the mystery of the sticky floors that often plague social ballroom dancers. The webpage for ordering the book is: http://www.press.uillinois.edu/s97/wagner.html.
If a literary agent makes an unsolicited offer for your writings about ballroom dancing, or someone asks you to submit a proposal for a grant to develop course materials about ballroom dancing, beware. The information might wind up in a black hole. The purpose of buying the rights may be to prevent distribution of the information. The now defunct but infamous gordon press and revisionist press used to list very many titles in ballroom dancing. Major university libraries may have old copies of the American "subject guide to books in print" from the early 1990's where you can see how extensive their listings were. I was never able to purchase them. They were notorious for not selling many of the titles that they listed as being "in print", though they did sell other titles that were not about ballroom dancing.