Eren's not normal just by virtue of being the protagonist. That alone makes him somewhat special. He may have started out life as normal, but after he got the shifter powers that all went out the window (and even before that, what with saving Mikasa). Historia also isn't entirely normal because of her social status, even if her personality may be.>Isayama is a guy who like that family things and parents and children
He also enjoys killing them off for maximum suffering. Mikasa's parents, Armin's parents, Carla, Faye, Dina, Marcel, Connie's entire family, the Reiss kids got brutally murdered, Rod himself died, then you also have Kuchel, Kenny, that girl from Sasha's village that watched her mother get eaten in front of her, Kruger saw his family being burnt alive... None of the families in SnK have ever really been super happy families, whether on Paradis or not (Reiner's parents, for example). Their world is too bleak for that.
Also, I just can't see Eren giving enough of a shit to have a child. Even if he "saves" Eldians, I can't imagine him wanting to bring another life into the world. And it's irresponsible to have a kid when you're going to die and not be around to raise it anyway.>>166347678
Carla says she's okay with Eren not being special but he ends up being special anyway.