Everything else gets left behind by accident.
There are thousands of videos on your phone and no one but you knows which ones matter. There's a voice memo you meant to send. There's the thing you'd say to your kid at eighteen, and you'll say it at eighteen, unless you can't.
Your phone has a setting for what happens to your photos. Your password manager has a page about it. Neither of them knows your son's wedding day or your daughter's first night in a new city. Nothing you own can wait for a moment.
The Mom Tapes can.
A keepsake box with no voice in it is just a box.