The good thing is that that those suffering kids have angels who behold the face of God and God lovingly takes them into His presence when their time comes. In his presence is fulness of joy. In the garden of Eden there was no pain and suffering, after the fall pain, suffering and death entered into the world and has been here every since, but loving God provided salvation through Christ. Ultimately pain and suffering will end but not for rejecters of Christ and mockers of God, their pain and sufferings will continue for eternity in the lake of fire.