What was Marilyn analogy of the birdcage?

In her analogy of the birdcage, Marilyn Monroe compared women's limited career opportunities and societal roles to being trapped in a cage. The cage represented the confining expectations placed on women by societal norms and cultural traditions. Monroe used this metaphor to highlight the restrictive nature of these expectations and the lack of freedom and agency women experienced in various aspects of their lives, particularly in their professional pursuits and personal growth.