The Question and Answer section for A Child Called “It” is a great resource to ask questions, find answers, and discuss the novel.
David's father promised to get David out of the house and away from his mother.... he never fulfilled that promise.
Although he cared about his son, Dave's father allowed seemed unable to stand up to his wife. He was weak and ineffective as a parent and an individual. He would rather just leave for long stretches of time than deal with the pain his son was...
That would be his aunt Josie's house.