Cofty your OP shows the revolting face of Christianity.
JWs are fully committed to the idea of forcing their brand of salvation on their own kids.
Surely this has to do with parents lack of insight into normal societal relations and a bullying attitude towards their children; believe it, it'll do you good! Another motive is to look good in the congregation with zombie children who just follow and please the foolish grown ups. The trouble is that the grown ups themselves are acting like unquestioning children and so creates the circularity in JW culture of dependent children growing up to become dependent adults.
This christianity is at odds with a healthy mental outlook and forcing the grim concept of sinfulness on children who cannot be expected to criticise it; is child abuse.