The male codfish takes an optimistic approach when it becomes a father to millions of offspring, showing unconditional love. In contrast, the British aristocracy often perceives its younger sons with skepticism and concern. This distinction highlights a critical view of societal expectations and familial bonds within the upper class.

Freddie Threepwood epitomizes the type of younger son who tends to elicit this critical perspective from his family. His character symbolizes the challenges faced by younger siblings in aristocratic families, who may struggle to gain acceptance and affection in the shadow of their elder relatives.