The web is now the “modern shopping experience”, but it may also be the only way people can find your business. By not making it accessible, not only are you ignoring £249 billion worth of potential business, but you’re also essentially hanging a sign up to anyone with disabilities saying “you can’t come in”.
https://www.coastdigital.co.uk/2018/08/02/web-accessibility-seo-breaking-down-the-barriers/