I just want to share
Now I understand why the father didn't turn old, those who turn old were all half blooded vampires (half human, half vampire, meaning: they were born from one vampire parent and one human parent).
Now I understand why the father didn't turn old, those who turn old were all half blooded vampires (half human, half vampire, meaning: they were born from one vampire parent and one human parent).
In my theory, all those who turned vampire by drinking the father's blood or a vampires blood and the father itself (since he's the origin) won't turn old and would live at least a normal life span. They are considered pure vampire.