The best explanation for including both of these scenes in "The Revolt of Mother" is to develop the relationship between the male and female characters.
The first excerpt focuses on the old man's frustration and his demeanor as he works, which can imply a certain level of tension or conflict, particularly in the context of traditional gender roles. The second excerpt describes the boy's grooming routine, suggesting a different kind of preoccupation that may contrast with the older man's more direct engagement with work and responsibility. Together, these scenes highlight the dynamics between the male characters and the broader themes of male-female relationships within the story.