It’s been a long time since Apple has added a new feature to iOS that I’ve actually cared about. But when I went into my Dad’s phone (just upgraded to iOS 17) to remove an AirTag that he wasn’t using, I noticed a “Share This Airtag” section that I hadn’t seen before. After seeing that, I updated both my phone and my wife’s phone to iOS 17. AirTag sharing really works! I’ve got an AirTag hidden in the family car, which I shared with my wife’s account. She can now see them on her phone.