All toddlers are not under 3

I have come to the realization that my daughter, who is 19 and my son who is 17 act like my 2 year old.... So this week I am going to compare them to him.... I looked up the definition of a toddler and it said:

1. One who toddles, especially a young child learning to walk.
1. A size of clothing for children between the ages of about one and three years old.

Also, I decided to use a scripture from my Bible to relate to my subject this week.

I Corinthians 13:11 "When I was a child, I spake as a child, I understood as a child, I thought as a child: but when I became a man, I put away childish things".