While it isn't throught of generally a web site like everything these days be it business should be accessibile for all users includes those
that are elderly and/or have a disability. If it isn't enough to ensure that everyone can access your site, depending on your business and/or
industry, it maybe a governement regulation and/or requirement that your site be accessibile. But, regardless if you have to be accessible or not
there are many benefits to following accessibility best practices which include; fulfillment of any regulations requirements, increased potential
for business as more users will have access to your content, longer user rentention (from Google studies), and best of all usually much better overall search rankings
(from Google studies).