The line is blurry for elderly people, too. Sam Colt made all people equal when it comes to capacity for personal violence.
I agree with you that killing young children is reprehensible, and I hope that consequences occur for each of the individuals responsible for the deaths of 36 Israeli children. I hold the same hopes for each of the individuals responsible for the deaths of over 10,000 Palestinian children.
I hope you'll forgive me for giving most of my mental energy to the slaughter that is actively ongoing and much greater in scope.