Now that Grandpa Joe has spent the day in the chocolate factory with Charlie, he’s emboldened to go against the other grandparents’ wishes and push them into the elevator. He knows that once they get to the factory, they’re going to come around and learn a new way of looking at the world. With this, the novel suggests that with certain influences, it’s possible to change one’s outlook and develop a healthier way of looking at the world—one where a person can enjoy the absurdity of certain situations rather than being afraid of it.