My (late) mother used to say that instead of thinking about how OLD you are, think about how YOUNG you are, to still have a grandchild who hasn't attended college, yet. My mother was 36 and my father, 51, when I was born, and they said it kept them young to have a child so young. I should mention that my sister is 11 years older than I am, and my brother was 7 years older.