A son is more keen on following in his father's footsteps. It's more dramatic to show the son living in the shadow of the father. It's just more palpable ... more commercial, perhaps. The most famous male comicbook heroes, for example, live in the shadow of their fathers, or father figures ... Spider-Man, Batman, Superman ... and so on.I don't understand what you're trying to say here. A son's Daddy issues good? A daughter's Daddy issues bad?