I’m a bit saddened, but not surprised to read that accessibility is still such an issue nowadays. Producing highly accessible websites should be a natural, ethical starting (and selling) point and benefit to all.

I don't do anything webby now, but I was involved with the creation and maintenance of an intranet website for a local government organisation in 2001. In those days websites were often ‘hard coded’ (and hand coded) using programs like Macromedia Dreamweaver, but even back then, accessibility was a hot topic to be taken seriously and designed in from the start.

The latest UK government guidance can be found here:
https://www.gov.uk/service-manual/he...e-your-service