Despite my curiosity, for privacy reasons I made the decision to not use 23andMe. (Basically - feels like information an insurer will inevitably want to use against me.) My wife did, however, and over the years our kids did too, for various reasons (an interest in genealogy, a kid with celiacs looking to trace the genetic component, etc).
Recently I was very surprised to look at the app on my wife's phone and see that they have a shadow account for me with a lot of details filled in, due to my wife/kids/siblings/cousins having used the service. I should not be suprised -- this is how they caught the golden state killer, after all.
When you say your wife "used 23andMe", do you mean she merely signed up for ancestry features (e.g. 23andMe Family Tree) without submitting her own genetic data (i.e. to see what happened when a relative submitted theirs), or that she also submitted her own genetic data?
