I do not believe it would be easier for the child. Yes, they may not hear the message of God, but their hearts would always be empty and seeking. If the heavens declare God's glory our children will see it anyways.
I use all of the examples in the Bible of the people who suffered, for no reason, so they could be servants of God. Joseph, who's own brothers sold him; Job, who was afflicted for no reason he ever knew; Paul who was imprisoned numerous times, shipwrecked, beaten... and so on as examples that even though they all went through hell, none of them deserved it, yet each one chose to follow God and not whine and bellyache about their suffering. Yes, those are big people ideas but our children can understand. Eventually, I believe, they will come back to the lessons and apply them as adults.
We all whine when we are afflicted, for no reason, hurt by idiots, suffer unexplainably. Instead of acting like it is just our children I try and let my sons know lots of people suffer, the biggest difference is what you do with it. How do you handle the pain? How do you view the trauma and sadness? Does it make you better or bitter?
I can't explain why it happens, just that I refuse to be a victim and I will continue to teach my sons that they do not have to be victims either. I pray it works.
I also believe sympathy will never help our children. If we feel sorry for them and their plight we are not empowering them to overcome and survive, we are letting them continue to be victims.
Just my thoughts. I know others have things that work too.
God is on control. We just can't see the big picture. For that I am thankful. I can only handle my small glimpse anyway.