"George can make his home with me, now that his school-days are over," said Lawrence to his mother, anxious to keep his young brother in his own family at Mount Vernon. "But I need him more than you do," objected Mrs. Washington; "you can hardly imagine how I miss him." "So do we miss him when he is not here," responded Lawrence. "George is good company, as much so as a man of twenty-five years of age. I want very much that he should make his home with me." What is the most likely reason why the author includes the details in this excerpt?