The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect.
— Tim Berners-Lee, W3C Founding Director and inventor of the World Wide Web
In the UK, an estimated 16.1 million people (24% of population) had a disability in 2022/23. There were 66.3 million internet users (97.8% of population) at the beginning of 2024. Exact statistics are hard to come by, but it might not surprise you to find that there’s a large intersection on the Venn diagram between those two groups.
If you’re confident all the various worldwide directives and legislation such as the Equality Act 2010 and European accessibility act don’t apply to your chatbot, and you’re happy to exclude a large portion of potential users, there is still reason to make it accessible aside from just being a decent human being; it’ll improve your codebase and user experience.