Why do people generally turn to spirituality only in their old age?

Death can come to anybody at any time. It is an arrow that is haunting everybody in this world. In oldage, death is very near. Thus an old person is haunted by two arrows constantly [The first is that the arrow of death is released, which means that death is certain…it is only a matter of time before it strikes you. The second is that death is very near ]. If one does not turn to spirituality even in oldage, he is similar to a student who does not open the book even in the month of March [final examinations are held in March].