You need to be 15 or older and not traveling with someone under the age of 15, so no infants in the emergency exits.
He's right! Children cannot get on the exit row seat because when they are older age with 15 to older. It should safety when getting older around 15 or older they can able sit in the exit row. Unaccompanied Minors is not allowed to sit in the exit row it is against FAA regulations.