We infrequently contemplate the harms that await any new-born child—pain, disappointment, anxiety, grief, and death. For any given child we cannot predict what form these harms will take or how severe they will be, but we can be sure that at least some of them will occur. None of this befalls the nonexistent. Only existers suffer harm.
Better Never to Have Been: The Harm of Coming Into Existence (ed. Oxford University Press, 2008) - ISBN: 9780199549269