Answer:
The author's purpose is to inform you about their childhood. What it was like growing up American. For example, the up and downs, the privileges and disadvantages, and how they had dealt with their hardships. Because while it was a privilege to grow up American, there were also many challenges. In this essay they share their memories and identity of growing up American.
I know this is only 5 sentences and it will need to be edited, but writing essays isn't exactly my cup of tea. Good luck anyways. I hope the first question I answered yesterday helped as well.