Universal Design is an approach to designing products and environments to be usable by all people, to the greatest extent possible, without the need for adaptation or specialized design. It recognizes that there is no single "average person" and aims to accommodate people of all diversities, including those with disabilities, the elderly, expectant mothers, and non-English speakers. Universal Design benefits all users by implementing features like automatic doors, sliding doors, and push/pull doors in schools and public facilities.