Final answer:
Jeannette's fall out of the car in 'The Glass Castle' sets the tone for the memoir, highlighting the chaos and neglect in her upbringing and kickstarting her journey towards independence.
Step-by-step explanation:
The story about Jeannette falling out of the car in 'The Glass Castle' serves several purposes. First, it establishes the chaotic and unconventional upbringing Jeannette and her siblings experienced. Additionally, the incident highlights the neglect and recklessness of the parents, setting the tone for the memoir's exploration of family dynamics and resilience. The event also acts as a catalyst for Jeannette's journey towards independence and self-sufficiency, which are central themes of the book.