Complex sentence: It is not a new genre of design or a separate specialism; it's rather a new mindset that seeks to include those people in society who have been excluded by design, such as disabled people, the elderly, or children.
Split into simpler sentences: It is not a new genre of design or a seperate specialism. It's rather a new mindset that seeks to include those people in society who have been excluded by design such as disabled people, elderly people or children.