Easy introduction to the joys of Cannibalism.
In Kindergarten.
Then, in the fifth grade they get the kids to emotionally role play the feelings of those who have had to resort to cannibalism as in the Andes plane crash.
Why? Because they must massage the emotions of the children in order to pervert their ability to identify what is virtuous within themselves. In other words, they do this to create sociopaths.
So, a little taste of blood is just an introduction for later.