The character contemplates his shortcomings in parenting, feeling that his mistakes are too fundamental to be addressed by typical parenting books. He reflects on a simple principle: making sure children know they have siblings, which he believes is so basic that it likely wouldn’t be covered in parenting manuals. This leads him to consider that there may be a need for more straightforward advice for parents.

His thoughts reveal a sense of frustration with standard parenting guidance, as he believes that many essential lessons are often overlooked in favor of more complex theories. This insight suggests a desire for a more practical approach to parenting that acknowledges the everyday realities and challenges parents face, indicating a potential market for such straightforward advice.