Answer: Adichie described how as a child she only read English books and in the books, she read all the characters drank ginger beer and that’s the only influence she had knowledge of in other parts of the world.
When she began to write, all her characters were white and drank ginger beer, despite her not even knowing what ginger beer was.
Her motivation to write stemmed from reading the novels of Chinua Achebe and seeing herself represented in the lives of his characters.