In Before You Forget - The Wisdom of Writing Diaries for Your Children, I wrote a chapter on Milistones, Achievements and Rites of Passage, about the value of saving Initiation Stories in your child's diary.
I've saved a lot of Initation Stories for my son in twenty years of writing to him -
first time he saw the moon
first lost tooth
first day of school
getting his license
graduating from high school
Yesterday, he left home in the afternoon in search of a girl. He drove to Nashua, NH, met her for the first time, fell in love, and brought her home to live with us. Her name is Judy Blue, and she's a purebred Siberian Huskey, named after one of his favorite CSN songs, Suite: Judy Blue Eyes. She has one brown eye and one blue eye! And I saved it in his diary, the story of how he became a father of sorts, for the first time.