RE: accessibility supported questions

Do you have a cite for this?

>> I think you have gone to the basic concept and gotten it right.

the key part of at least USA law is that it cannot be considered
accessible or compliant if it requires a person with a disability to
have a specific piece of equipment or software that is not required of
everyone or is not provided free to everyone who needs it.<<

Cheryl D Wise 

privileged.  They are intended ONLY for the individual or entity named