I recently attended a workshop that recommended using an Ipad in the classroom as a children's camera, letting the children use it around the room to take pictures. I have recently upgraded my Ipad, but my old one would be perfect for this. I can remove all the apps, and put restrictions on it so it can only be a camera. My concern is, can the kids physically take a picture with the Ipad? I'm looking at childproof cases, but I'm not sure if their hands are big enough to hold the Ipad and take a picture at the same time. Thanks!