I've long been puzzled why some children in therapy who have no problem reading won't spontaneously read or profess to dislike it. Having tentatively concluded that, since reading involves the active use of the self, this creates anxiety for these disturbed children and motivates this resistance. But I've also encountered seriously disturbed children who read many books a week.
Certainly, there may be other contributing factors besides psychopathology: whether early-life parent encouragement of reading existed; the child never having grasped the escapist, soothing possibilities of reading fiction; or their over-involvement in another activity such as video games whose obsessive-compulsive elements reduce anxiety and is one reason for their popularity.
In any case, this would seem a worthwhile topic for study. And now the idea is yours!