I am curious as to how and when the first person (creature actually) said "let's see what torturing these children will provide for us to feel young again". I mean who the hell wants to hurt little ones? Only devils. Maybe they will burn in hell for eternity, that would be fair.

Well I have no idea when it started but it goes back to the fallen ones/ Moloch and others. We know there is a reason why Matthew 18:6
“If anyone causes one of these little ones—those who believe in me—to stumble, it would be better for them to have a large millstone hung around their neck and to be drowned in the depths of the sea.

Laurence Gardner unintentionally explains the origins in "Genesis of the Grail Kings". It is bizarre and comes with a controversial theory about the Tora, Adam, and ancient history in general. One does not need to believe his Annunaki (Elohim) theories to follow the evolution of the ritual drinking of blood from Sumeria to today.

The short version is that the ancient Sumerian Kings (the ones that lived for a thousand years) consumed menstrual blood from Annunaki virgins for its potent hormone content. When the Annunaki left, the kings tried human menstrum but it was insuficient. A chemical substitute was created (the bread of life, mana) and used for centuries by priests and kings and pharaohs.

A certain group of people started using a different, non-synthetic, source.

https://www.youtube.com/wa...