Sometimes, there are people who thinks that if something doesn't concern the other person, they may choose not to tell them of such things. No wonder there are parents who never know who their sons/daughters are dating. Also, some people would contact you only if they want something. Keith's kids only text him if they want something and Keith's ignoring their Facebook messages, or if they can't connect to Facebook and want something really bad. It's how kids/younger generation these days act in general. Keith's sister would relay/pass her message for Keith to their parents and not directly even though she knows all Keith's numbers. And we don't know why she does that. Sometimes we have to accept that we can be important or not to other people, even to our own relatives or families.