Yes many parents do hates their children due to the actitude of the kids or disagreement between the children and parents many even go to the extent of killing their children due to the disagreement, children in the other hands two kill their parents due to this same disagreement,so is vice visa.things are really happening in this generation,what about parents who use their children for ritual,maybe in the process the child is also high in spirit and the father want to use him or her due to his spiritual upliftment his father wises couldn't suceed hatred sets in ,same thing also can still happen to the other hand so hatred must be in human exestance.
I meant 4-5 year old children.