There are several reasons but mainly because basically it's not the way things are supposed to go. We have children also for moving on with our species, in this way children are our future, if they die it's like we're failing at survival. read more
Most parents would probably choose death over seeing their children prematurely die or worse, tortured or molested; as such, for them such fate would be worse than death. Death isn’t such a blow when a person is able to live a full life, both in duration and quality; when this is cut off, the mourning of such a person isn’t just because we miss them, but we also feel the loss of potential. read more