text: My first reason would be is because if our parents call or text us something that's important, well then we need to check and see what they said. Maybe it is something we need to do for one of our classes, like a missing assignment. Maybe we forgot our lunch at home and our parents are telling us that they are coming to drop it off to us. It is very important that we know these kind of things. Now this is just one reason, but there are plenty more.