The idea of More Than Enough grew out of author Anna Quindlen’s experience hearing from people who had been caught unawares by unexpected DNA test results. In the 2010s, interest in genetic testing exploded, fueled by new technology that made it easier than ever to learn the details of one’s genetics. What used to be a costly, time-consuming process requiring a doctor’s office visit could now be done at home for less than $200. With a simple cheek swab, anyone could discover their ethnic origins or even connect with relatives they never knew existed. These tests have opened new paths to personal connection, cultural discovery, and potential early awareness of genetic health risks.

At best, direct-to-consumer DNA tests thus offer people a tangible, inexpensive way to feel connected to their ancestry and fill in the blanks of family history. However, the boom in genetic testing also raises ethical and practical concerns. Tests marketed for ancestry are not regulated as medical diagnostics, and interpretations can vary widely, but the specter of health problems can lead to misunderstandings or emotional distress when results aren’t definitive or are inaccurate. Moreover, genetic data is both personal and permanent, and once shared with a testing company, individuals have little control over how that data is used or accessed by others. The ethical issues thus extend to privacy, consent, and ownership of genomic information, questions that many companies and users only began to recognize years after the tests became available (Hall, Kathleen. “The Downsides of At-Home Genetic Testing.” Sharecare, 2025).

Such concerns reached new heights in 2025, when the popular testing firm 23andMe filed for bankruptcy after a major data breach and declining demand. This raised alarms about what might happen to the genetic information of roughly 15 million users if the company’s assets were sold or transferred. Privacy officials, including the California Attorney General, have urged customers to delete their data due to concerns that genetic profiles cannot be changed once exposed and could be exploited by third parties, including insurance companies, pharmaceutical interests, or data brokers. (Godoy, Jody. “FTC Concerned About Privacy Protections in 23andMe Bankruptcy.” Reuters, 2025).

Aside from legal concerns, these tests can cause significant emotional strain on families as long-held family secrets come to light without context or explanation. Like most technological advancements, particularly those tied to health and wellness, the ethical implications of these tests are a double-edged sword. While genetic testing can bring valuable knowledge and meaningful connections, it also creates emotional, legal, and moral quandaries that complicate ideas about family, privacy, and identity, just as Quindlen explores through Polly’s journey in More Than Enough.