I have one of the original Kel-tec P3AT's. From my understanding, the original Ruger LCP was an exact copy. I find my Kel-tec terrible to shoot. In my hand, I can only fit 1.5 fingers on the grip which leads to a lot of muzzle flip. I put on a magazine extension so that I could get two fingers on the grip, but it is still a handful.I would recommend an LCP 380. Just point and pull the trigger. Very little recoil.
I would definitely put one in her hand before going that route. It's hard to shoot if you can't hold it.