My daughters, aged 13 and 7, take karate lessons. Sadly, I have no doubt that they'll need to use it at some point to defend themselvs, given the direction American youth are headed when it comes to treating girls with respect. We owe them the ability to take care of themselves.
For your own sake keep a low profile on this for if it gets out, "Karate'" will take the same path as "hand guns" have for the "Karate'" challenged self defenders!