Fan Casting Accents Aren't Hereditary in Sort by Tropes

This trope only applies to cases where family members should logically speak with the same accent, such as a case of siblings who were raised by the same parents in the same environment inexplicably having different speech patterns or a child having a differing accent that doesn't logically derive from either of their parents. Situations involving Immigrant Parents are excluded, as children can and do pick up their parents' accents despite not speaking the language that created the accent or never having visited the country where the native language is spoken.