Indoctrination and influence are the culprits and even you don't see it.
Your suggestion to steer them intp some other form of dance is dumb . . . . what form would you suggest "?
What do you have against dance? Like music and all the other arts, it began as a form of worship.
Do you think the dancing of Gene Kelly, Bing Crosby, Baryshnikov, and any number of others was ‘lewd’?