Not a Child

We're invited to a friends' wedding next month. I just saw on their website that it's a child-free event and was like, dang!  Korra would have loved going.  But then I looked at the invitation and it included Korra, which means... Korra isn't considered a child. She's a teenager.  I nearly cried.  I'm glad she gets to go, but also feel really sad to realize, she's not considered a child anymore. She's starting high school in a week.  Wow.