As someone who is only very slight of hearing - no problem talking with people in person - it is also immensely frustrating that I usually can't get English subtitles on Netflix instead of a translation. And when I can finally get it in English, it's closed captions, which kind of ruins my experience by captioning every sound effect in a movie or TV show.
I have no idea why this isn't a bigger focus at Netflix given there must be a whole iPod generation with some minor hearing problems.