What does 'gender insubordination' mean in the context of Japanese manga for girls?

In Japanese manga for girls (shojo manga), 'gender insubordination' refers to characters, often female protagonists, who defy or challenge traditional gender roles, expectations, and stereotypes prevalent in Japanese society. This can manifest as assertive personalities, a rejection of domesticity, the pursuit of careers or goals outside the home, or even the blurring of gender presentation and identity.