All intelligent beings who are crowned with crowns of glory, immortality, and eternal lives must pass through every ordeal appointed for intelligent beings to pass through, to gain their glory and exaltation.
YOU are missing an understanding. All intelligent beings who gain their glory and exaltation pass through ordeals appointed by God the Father. They are not appointed by you.
You have no knowledge of what those things are. They are different for each person per God's jurisdiction. We are all his individual children, and as such, our trials are individual and different.
According to our doctrine, babies who die before the age of 8 are saved because they have already met whatever was demanded of them in the pre-existence. They are among the choicest of spirits, just as the handicapped are.