My mom is a tenured University professor and my stepfather is very, very smart structural engineer, now retired. They both call for tech support every once in a while. I'm quite sure - by the nature of the calls - they would be able to solve their problem themselves. But they like my wife and I coming over in the weekend for "helping them with their computer". The tech support call is nothing more than a "hey son, why don't you come over here?" call.
Maybe your dad do the same thing to you?