Think about it. Most believers come to Christ as children. So, if you wanted to stop Christianity from growing you would have to stop children from becoming Christians. And if you wanted to stop children from becoming Christians what would you have to do? You would have to go after the family.
Children live and find life direction in the context of family. Their sense of self, their emotional well being and their moral development happens in the family environment. Education certainly plays a role and the devil is working overtime to get control of the schools but he knows that if he can destroy the family, he not only weakens society but he weakens Christianity and that’s his evil mission.