Old Negatives What's Likely To Become Of Old Negatives And Documentation After A Photography Studio Goes Out Of Business?

What's likely to become of old negatives and documentation after a photography studio goes out of business? - old negatives

I know that does not take the negatives forever, but I like to imagine that anyone old negatives and documents destroyed, because I think it is useful for everyone.

It can be issues of confidentiality, as well, if you tell me what you think and / or known, even if only marginally relevant.