What I'd really want is to go back to a world where we just don't have the opportunity and expectation to record so much. But that's not going to happen. And a lot of it really does have immense value for us. Our parents live on the other side of the country and this (plus FaceTime) is the main way they get to see their grandchildren grow up.
With that in mind, I would love a set of glasses that record what we're seeing on a short buffer and let us tap to save whenever something interesting/significant happens. No more phone out worried that we'll miss a big moment.
I'd really prefer to see someone with some ethical sense try to tackle this in a way that doesn't send us directly into this world: https://en.wikipedia.org/wiki/The_Entire_History_of_You
I don't know who that would be, but it's certainly not Facebook.