Here's why:
* It's an adjective phrase: "Light skinned" describes a person's skin, making it an adjective phrase.
* Nouns need to be singular or plural: Nouns are words that represent people, places, things, or ideas. They are either singular (one) or plural (more than one). "Light skinned" doesn't fit that definition.
How to use it correctly:
* As an adjective: "She has light skin."
* As a noun with a modifier: "People with light skin are often called..."
Alternatives to using "light skinned" as a noun:
* People with light skin: This is a more accurate and respectful way to describe individuals with light skin.
* Light-skinned people: This is also an acceptable alternative.
* Fair-skinned people: This is another common way to describe people with light skin.
It's essential to use language that is both accurate and respectful when discussing skin color.