Pineapple Street seems like a typical family novel, with the focus on three grown sibings. The difference is that this NYC family is one of America's most wealthy one-percent citizens. The Stocktons are so wealthy that younger daughter Georgina doesn't have any idea of the multiple millions that constitute her trust fund; and when she learns about it, has no idea what to do with it.
The following review from amazon.com describes the plot better than I could.
The story is told from three points of view: Darley, the eldest daughter who gave up her lucrative career to raise kids; Sasha, who grew up middle class and married into this moneyed foreign world; and young Georgina, who is still finding her way. There’s fabulous real estate, forbidden romance, old money shenanigans, and endless rounds of tennis at the club. But there’s also lots of heart, a family who truly loves each other (even if their attempts at showing it can be misguided), class struggles, and a happy ending.
The family members are not stereotypes, and their lives seemed very unfamiliar, but believable to me. The characters are not spoiled villains and are actually pretty likable. I agree with reviewers who found the book amusing. Amazon called Pineapple Street the best book of March 2023.
The author doesn't try to convince us that we need to feel sympathy for these most wealthy Americans, but she does let us see their humanity. It will be your decision whether, in spite of their wealth, the Stocktons are just like us! I do think you will like the characters and will read about their lives quickly and easily.