The creation of this script was as a proof of Ogma's own ingenuity and that the knowing of this should be kept for only the most learned to pursue the truths that the Ogham may reveal. The act of crafting ogham is one of capturing the very essence of a sound, which could also be said as the naming of a thing and binding it to a physical form.
It is said that the king of the cats lives to this day looking as any other cat does. So, if there is a King o the Cats why wouldn't there be a Queen?
Have you asked your cat if they are royalty?