My heart goes out to the families of the fallen. We are all only allotted so many hours in flight. Some people get lots of safe time and others are in a crash the first time they fly. My grandfather was an Army flight instructor in World War One and after the war he became a mail pilot. He only lasted a few months because his inner voice told him he would not survive long if he continued and in fact many of his fellow pilots were killed in those preinstrument planes. Because he listened to his instincts he died of old age instead of "buying the farm". I've pretty much grounded myself for the same reason. "A man needs to know his limitations" as Clint 
Eastwood put it.