Digital assets are a lot more perishable that physical ones. Cloud accounts will expire and be purged before anyone has the chance to retrieve them. Nobody will do "storage wars" with your pictures. Your local storage will fail or become incompatible with future tech before anyone has a chance to care about it.
We generate information at an ever increasing rate so whatever digital collections we have now will probably never be "dug up" by our descendants for a deeper look.
I'm trying to leave a "curated" collection with a few memories in such a way that it's immediately available to my family after I'm no longer around. Some moments in time that were important to my life, and had an influence on theirs.
Lets hope our kids and theirs keep our digital archives long enough for the great grandkid's to enjoy.
I guess I may be ignoring all those documents that weren’t interesting enough to be remembered, but I imagine it’s hard to predict what will be interesting in the future. The fact that 99% of our lives are stored in computers vs paper would still vastly reduce the number of _interesting_ documents.