There are many reasons that clearly explain why websites and apps should be accessible to people with disabilities.
1) The accessibility of the Internet or the app among the same population allows government websites and mobile apps to reach more citizens. Websites and apps allow the same institution to reach more online customers as well and, of course, maintain direct contact with them.
2) Everyone has the responsibility to adapt and provide their services to people with disabilities. This issue is especially important for business websites and apps because they allow people with disabilities to connect with their environment, purchase services and products all the way home and thus live a more normal life.
3) When you make a process of accessing websites and making accessibility adjustments to your website, you also enjoy the process of optimizing your website for the search engines. Proper search engine optimization will allow your site to be indexed better and give you a great organic advantage over your competitors who have not been made the site accessible at all.
4) During the process of building accessible websites, there is a need to use appropriate coding techniques that give websites and applications an advantage to maintain them. An accessible website is a more stable, high-quality and well-maintained website!