I'm using the
yt:cc=on tag option to auto turn on captions for my foreign language audio YouTube video. I have English (United States) subtitles available, and my desire is that everyone should get the subtitles auto on unless you are using YouTube in that foreign language.
Is that how it works? I know that most Europeans etc. speak and use the internet in English, I would like them to have subtitles in English instead of no subtitles at all. For example I have no subs in French or German and those users are likely to understand English but not my foreign language. If they don't get the auto-CC since my subs are English only then YT subs don't work for me at all and I would need to hardcode the subs into my videos.