This is not a specialist skill to be handed over to the church. It is a nurturing task, as basic as feeding the children and comforting their hurts. Another option is to widen family groups, to include other supportive friends. Children need a wider community of age and experience. Every Christian of every age has a story to pass on to the next generation.
Intergenerational groups are a powerful dynamic in the life of the church.
A few churches are discovering that. Most churches try to polish up their children's and youth programs hoping they will find the right formula. Few are bold enough to recognise that programs will not hold the next generation. To do that you need a community of loving people.