abstract:Language documentation is the process by which a language is documented from a documentary linguistics perspective. It aims to “to provide a comprehensive record of the linguistic practices characteristic of a given speech community”"Documentary and descriptive linguistics", Nikolaus P.
Their documentation can be used in the future as a study tool and for language protection efforts,if needed.
VOA: special.2009.12.02
Some also expressed concerns about whether they would be able to open accounts if they didn't have documentation like Social Security numbers, as well as concerns over language barriers.