It's a kind of Magic
If you have ever found yourself wishing that like Harry Potter, the heroes of Dungeons and Dragons or the Dragonborn of Skyrim we live in a world with magic in it, Well I good news... I think we do.
The Infallibility of Parents
However many parents you have, however your specific configuration of parents works; and regardless of them being your biological parents or not; you don't get to choose them and they come a wide range of ability and aptitudes.
From the moment you were born (and probably even before), many of the characteristics that combine to make you unique were being labelled.
Everyone copes with misfortune differently. Those who fall apart and those that stare it coldly in the face are both dealing with it in their own way.