Another major problem with mobile devices is it is very hard to hold them without accidentally interacting with them. My Dad has this problem on his Android ph

Another major problem with mobile devices is it is very hard to hold them without accidentally interacting with them. My Dad has this problem on his Android phone, and I notice this too whenever I try to hand my phone to someone to show them an article or picture. Of course, having a rubber bumper around the phone helps quite a bit, but somehow they need to come up with a way to differentiate a grasp that touches the screen, vs. a deliberate button push on the screen (maybe by filtering out screen presses when a similar pressure is detected on the back of the phone/tablet in the same region?)