The role of law and policy
Everyone has the right to communicate, which means everyone has the right to communicate in a variety of different ways that work for them.
The United Nations Convention on the Rights of Persons with Disabilities says:
People with disability have the right to express themselves, including the freedom to give and receive information and ideas through all forms of communication, including through accessible formats and technologies, sign languages, Braille, augmentative and alternative communication, mass media and all other accessible means of communication. (Article 21)