As a Chinese person, I find it hard to understand that Atticus Finch's children call him "Atticus" instead of "Dad" and Atticus felt no disrespect.
I googled it and found someone said, Dill asks Scout, "why do you call your daddy Atticus?", and Scout replies, "because Jem does." I feel that excuse unconvincing.
I asked ChatGPT and it said
In Harper Lee's novel "To Kill a Mockingbird," Atticus Finch's children, Scout and Jem, call him "Atticus" out of respect and admiration for him as a father figure and as a moral authority in their lives. It is also a way for them to distinguish him from the other fathers in their community, who they see as less admirable.
I feel that is even more unconvincing, that Scout and Jem, call him "Atticus" out of respect and admiration for him as a father figure*?!
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Except for the answer in Why do Jem and Scout call their father Atticus?, like the unorthodoxy of the family, addressing their father as equal, can "treating his children with courteous detachment" be another reason ?