What about categorizing people in a positive way does that result in prejudice?

Prejudice

Prejudice is an unjustified or incorrect attitude (usually negative) towards an individual based solely on the individual’s membership of a social group.

Does the categorization of people always result in prejudice? What about categorizing people in a positive way does that result in prejudice?

Does the very categorization of people for example, as female, a college student, African American, or Texan necessarily rob them of individuality?