Abraham or Michonne, they won't kill off Rick or Carl due to
"Anybody moves, anybody says anything - cut the boys other eye out and feed it to his father.. And THEN we’ll start."
And Daryl is way too important of a character to just kill off.
If you look at most of the characters, and the end you see the person's eye perspective as they were getting their head bashed, Abraham was the only one with no hair in front of his eyes.
True, but in previous POV scenes such as Daryl when he gets kidnapped by the savior, there was no hair in his face even though he clearly had hair visibly blocking his vision in the 3rd person shot.
Look at background stuff and aim it up to how a person would be looking, it perfectly makes sense as Abraham doesn't have LOADSSSS of fans, and he's an important character that can be killed off without it affecting the show's views or money making to a certain extent on not making it boring.