Universal Design is not a substitution for accessibility. The intent of universal design is to simplify life for everyone by making products, communications, and the built environment more usable by as many people as possible at little or no extra cost.
Universal design benefits people of all ages and abilities.
The design is useful and marketable to people with diverse abilities. Avoid segregating or stigmatizing any users. Provisions for privacy, security, and safety should be equally available to all users. Make the design appealing to all users. The design accommodates a wide range of individual preferences and abilities.