This isn't really a theory, just a headcanon. Which are technically different things.
WILLIAM AFTON:
Mrs. Afton: Has a love hate relationship with her, I imagine they stayed together for the kids, but don't exactly love each other as much as they used to.
Michael Afton: William's least favorite son. I think William doesn't believe Michael is his son, either that, or he met his wife while she already had a son, causing a not so good relationship between the two. Although, since he does choose to go by Michael AFTON, maybe he is his son. I think it's clear William hates his son, since he sent him down to the sister location possibly knowing the funtimes could kill him, and possibly knowing Baby would use his body as a vessel.
CC Afton: (Crying Child doesn't have a name so I'm calling him CC) I think this would be William's REAL son. The one he knows is 100% his. Doesn't love him much though, he is neglected and not cared for. After Elizabeth's death, I think he keeps a close eye on him, with the FredBear plushie and stuff.
Elizabeth Afton: His favorite child. Typically, fathers take a lot of care and favor their daughters. This is what she is. She is the golden child, the one who gets all the attention, and the one who is spoiled. He expects more of her than the other ones.
MRS. AFTON:
William Afton: She wants to see good in him. But deep down she knows, the man she once loved is gone. If she is Ballora, it would make sense why she would want to kill "William" in Sister Location.
Michael Afton: There has to be a reason how Michael is still alive even after killing CC. I think that reason is his mom, his mom always defends Michael from William.
CC Afton: She's a mother, so if he's sad, she takes care of him. However, I believe the reason she isn't in FNAF 4 is the same reason William isn't, she's at work. Like I said before, CC is neglected, so even if Mrs. Afton was the better person than William, she wasn't an amazing parent either.
Elizabeth Afton: I think Lizzie is more of a daddy's girl. Meaning, she probably acts bratty with her mom, and she always gets what she wants when she asks her dad. I think deep down, Mrs. Afton knows Elizabeth had become her father.
MICHAEL AFTON:
William Afton: Michael always tried to get along with his dad, but they are different from each other, so it never really worked. I think after the bite of 83, their relationship became worse. William is crazy, but he didn't kill Michael after this because he probably thought he could use him, which led to a worse relationship.
Mrs. Afton: I think she was Michael's favorite parent, which would make sense since William hates him, so his mom is his other choice, unfortunately, she's around way less, since Michael always had to go to Freddy's with his dad.
CC Afton: So if we go with the idea that Michael isn't William's biological son, then maybe this is why Michael bullies CC. However, I like to believe they're all biological related. I think the real reason he picks on him is because he thinks he's a crybaby, I imagine CC is like 10 so he's considered "too old" to be a crybaby, which makes it funny for Michael and his friends. However, despite all this, he really is just teasing, until it went too far. He still loves his little brother, he protects him from William, and thinks about how he killed him everyday with regret.
Elizabeth Afton: I don't think these two got along. I mean, if Michael was a troublemaker older brother and Lizzie was a spoiled little sister, those two don't mix well, they probably found each other annoying. I imagine scenarios where Lizzie tells on Michael and William always believed Lizzie. Michael doesn't do anything to her because she's the golden child, and knows he'll get in trouble, which is why he bullies CC, because William won't care. It's evident Lizzie doesn't like Michael, based on how she acts towards him in Pizzeria Simulator.
CC AFTON:
Ok so this is the most complicated one since we don't get much evidence for him.
William Afton: CC is the middle child, so he's not cared about much, but after losing Elizabeth, I think William tried to keep him safe, he failed obviously. I'm not entirely sure what his goal with CC was in FNAF 4 with talking through the FredBear plush. I don't really know if William liked or hated him.
Mrs. Afton: Same info as Mrs. Afton towards to CC.
Michael Afton: CC gets bullied by Michael, we haven't seen if he also hates Michael. I think deep down, it hurts him that Michael "hates" him. He probably didn't even think Michael liked him at all. It's sad honestly, he died thinking his brother hated him. However, in my own headcanon, I think CC was a trouble maker child before, what with him breaking out of the house and all. So I think with that personality, Michael and CC did get along, as any brother would, and he only started bullying him once he had a personality shift.
Elizabeth Afton: Ok so these two haven't had a single interaction in the entire franchise. So I'm not sure about them. But if we take their personalities, then maybe CC tried to take care of Elizabeth as much as he could. I personally think he saw Elizabeth die, which would be why he turned into a "crybaby." I'm not really sure if they're twins or not. If not, I think CC may be older since he's allowed to walk home while Elizabeth had to stay by her father while he worked.
ELIZABETH AFTON:
William Afton: She cares a lot about his opinion, and has pressure on her to be perfect. As confirmed by the books. I think she's his favorite parent though. As I said earlier, she is a daddy's girl, she always gets what she wants with him.
Mrs. Afton: Elizabeth doesn't seem to like her mom. If the theory of her being Ballora is true, then you'll notice something, Baby talks negatively about Ballora in Night 4 and seems to know a lot about how she works in Night 2, and then in Night 5, she throws Ballora under the bus by saying that she specifically is the one trying to catch her.
Michael Afton: I don't think Elizabeth likes Michael, she probably saw him as a "mean older brother," which he was. And then in PS, she clearly doesn't like him still.
CC Afton: Maybe Elizabeth also thought it was funny how easily spooked he was, maybe she scared him a lot. Who knows what they're relationship is tbh. Hopefully a FNAF game or book confirms what their relationship with each other is.
All in all, the Afton Family was never perfect, even when they were all alive.
Theory Updated: February 11, 2024
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