I love that, too!
My mom always told me I'd appreciate it when I was 40! I even appreciate it at almost-50! LOL! Just recently the girls and I were singing/playing for a mother/daughter banquet, and a lady asked who was the oldest. My oldest dd said she was, then I joked, "Well, really, I am! I'm the mom!" The lady was so amazed! She said, "You're the MOM?!" Then she told one of her friends, "She's the MOM!"