Under HIPAA requirements emailing personal medical info is a massive no-no. Admittedly, this is for the patient's protection, and of course being blind is not much of a secret... but it's completely understandable that email would be strongly discouraged. Nobody wants to get in trouble for breaking the rules.

Honestly, being able to accept a fax is great, although I would think any properly outfitted modern office that does accept fax would be able to route them straight to document storage rather than a printer. There are probably even internet services that can just act as a fax dumpster and hold PDF/image file for perusal at one's leisure. Yes even the govt can figure this sort of thing out.

Many Americans turn on subtitles when watching tv/movies

Gone are the days when American actors flaunted those crisply enunciated albeit preposterous "continental" accents