So my 3 year old dropped the iPad mini a bunch of times. Now it has cracks across the screen, some on the bezel, but otherwise seems to work. As there seems to be no cheap options for screen repair I bought a griffin survivor case which covers the entire iPad and has a plastic screen that goes over the mini screen. So seems relatively safe to use. But will the touch screen eventually stop working as the cracks get worse? Is this not a safe option? Any other suggestions? Thanks.