Do you think that crying child is Mike? Or do you think it was his older brother?
I definitely see a lot of evidence for both theories and they both definitely have holes. I personally support the theory that Michael is the older brother. All my art is drawn in this context. I think narratively it allows for the most clear and interesting character motivations in the Fnaf lore.
After Elizabeth’s death, William becomes negligent of his own children’s needs obsessed with Remnant in an attempt to find a way to bring his daughter back (he is unaware that Elizabeth’s soul is in Baby- ref my Will theory). Putting all responsibility on Michael to watch his brother, Mike becomes very resentful and choses to pick on his brother’s fear of animatronics to vent his anger and frustration. This escalates from scaring from behind doors to the prank that ultimately causes the bite of ‘83.
Guilt ridden over this incident, Michael becomes a much more sympathetic and mindful person. After being Scooped, I think it is one of the reasons Michael becomes a security guard in order to help protect the children that come to the Pizzerias and help bring their happiest day, something he ruined for his brother.
This also is one of many factors that could drives Michael to put the spirits of his father’s victims to rest. Knowing the spirits are already hostile toward adults, Michael does not want to see one of the tormented possessed animatronics accidently kill a child in their anguish and lose yet another soul to his father’s creations.
I have a little theory idea that maybe Jeremy survived the Bite of 87 because Fazbear Entertainment used remnant technology to keep him from becoming brain dead. Made easy pickings for Glitch trap to get in later. >;)