While the narrator implied that the other children have one or two parents in their lives, Charlie has six adults who, barring the grandparents’ mobility issues, could conceivably take him to the factory. When Mrs. Bucket insists that she can’t go because she must care for her parents and in-laws, it shows again how loyal Charlie’s family members are to one another. Even the excitement of visiting Mr. Wonka’s factory isn’t enough to take Mrs. Bucket’s attention away from what the novel implies is most important: family.