Baby's First ID

So, I don't think I had an ID until I was a teenager....times they are a changin'.
We got a gym/waterpark membership and we signed up for the family plan. Well, appearently they've had people show up with 15 kids to go to the water park and claim they were all theirs, so they make everyone in the family get an ID card...we thought they were joking at first, but no, she had to have an ID card and show it to the check-in person and get a wristband just like us.