Why is the play titled glass menagerie?

The play is titled "The Glass Menagerie" because it symbolizes the fragility and vulnerability of the Wingfield family, particularly Amanda and Laura. The use of the word "menagerie" implies a collection of exotic and delicate creatures, which is how Amanda and Laura view themselves and their lives. The Wingfields are trapped in a world of their own making, unable to escape the illusions they have created. The play uses the metaphor of the glass menagerie to emphasize the fragility and delicate nature of the Wingfields' lives. The glass animals in the menagerie represent the delicate and fragile nature of the Wingfield family's dreams and illusions. The breaking of the glass unicorn by Jim symbolizes the shattering of Laura's illusions and her loss of innocence.