I feel like I covered my bases with the rest of my comment there. If you have thousands of photos that you want to share, host them on your server and whitelist the people you want to see them :/
IRL I've never sent nor received more than a handful of pics at a time, and always through email. It would have never occurred to me that people are out there sending the whole family collection to each other digitally. Grandma hordes those pics for a reason; as leverage for people to visit her!
I legit still have my books from when I was a kid. Berenstien. My friend also has their books from when they were a kid. Berenstain. We argued about it off and on for like a decade before we finally settled it. We only have one book in common, a halloween one, but other than that we have no idea what happened. They were printed in different years, but why would that matter??? IDK, it is a mystery.