Accessible web pages for example will expand a site's potential audience to the millions who are disabled, or who have slow connections. In some countries, it's the law. In the United States, for example, the Americans with Disabilities Act requires reasonable accommodation for employees with disabilities, and that requirement extends to web site accessibility. Accessible designs often benefit not only people with disabilities but also those in the mainstream. For example, screen readers and dictation software, which are meant to empower the visually impaired, can be used for document creation and proofing.
Accessibility is the right thing to do.
It helps achieve societal goals of full participation and of equality. Web accessibility, Email accessibility and Adaptive technologies. What is Web accessibility Web accessibility involves the ability of a web page to be read and understood, using adaptive technologies where necessary. The blind and visually impaired are the most affected by the advances in the graphical nature of web sites. This graphic is the web access symbol that persons are invited to use on their web pages to alert folks that their entire web site or certain pages are accessible to persons with disabilities.