https://www.mercurynews.com/2022/07/28/ask-amy-these-sperm-donor-babies-are-not-my-family/

Dear Amy: You recently wrote: “I have mentioned this many times (especially lately), but the ubiquity of DNA testing is basically coming for everyone. Each of us should try to anticipate the possibility of being contacted by DNA relatives.”

Our situation is that an uncle who was an ob-gyn donated sperm to a bank many times throughout his career. (He’s 94 now.)