It used to be you could find a box of photos or keepsakes that you inherited to look back on how things were or when you were a kid. Now, most of that is stored on phones, and most parents probably don’t think to share or save them in a way to be passed down in the future.
Apparently some people collect photos like that. They might even have some value to a museum.
They can show how people lived in the past.
If I do get them all digitized, I would be willing to send plenty of them off to museums if there is actual interest. I imagine there’s none here (Japan) for someone growing up in the rural great lakes area of the US, but someone somewhere might be interested.