Who decides which traits are normal and constitute a disability or disorder?

There is no one definitive authority that decides which traits are normal and which constitute a disability or disorder. Rather, this is a complex and ongoing debate that involves a variety of stakeholders, including medical professionals, researchers, policymakers, and individuals with disabilities.

In the United States, the Americans with Disabilities Act (ADA) defines disability as "a physical or mental impairment that substantially limits one or more major life activities." This definition is broad and open to interpretation, which leaves room for debate about which specific traits or conditions qualify as disabilities.

Additionally, the line between normal and abnormal can be subjective and vary depending on cultural context, personal values, and individual experiences. For example, some traits that might be considered abnormal in one culture might be considered normal in another. Similarly, some individuals with disabilities might not perceive themselves as disabled or may not wish to be labeled as such.

As a result, there is no easy answer to the question of who decides which traits are normal and which constitute a disability or disorder. It is a complex issue that requires thoughtful consideration from a variety of perspectives.