Maybe, or maybe it's another case of a "common knowledge" phenomenon. Sure, theoretically everyone knows about legacies, but formally acknowledging it means you

Maybe, or maybe it's another case of a "common knowledge" phenomenon. Sure, theoretically everyone knows about legacies, but formally acknowledging it means you can't pretend not to know for specific purposes. (E.g. "everyone knows" is an invalid argument for court if someone brings up discrimination; "they admitted it in a public statement" is a totally valid argument.)