Online presence must meet the “Americans With Disabilities Act (ADA)” Compliance. This means your website must be accessible to Americans with a range of disabilities.

• Increases Your Target Audience
• Improves Your SEO Efforts
• Help Your Reputation
• Overall Better Website Usability
• Avoid ADA Penalties

https://www.w3.org/WAI/perspective-videos/
https://www.youtube.com/watch?v=3f31oufqFSM
https://www.w3.org/TR/wai-aria-1.1/