Earlier quoted context omitted.
When I've moved to New Zealand, I was taken aback at how many people just could not stand subtitles. This and your mention about 'barrier' reminded me of Bong Joon Ho (director of Parasite) calling this out: "Once you overcome the 1-inch-tall barrier of subtitles, you will be introduced to so many more amazing films."
The problem I have with subtitles is the same reason I could never enjoy comics / graphic novels. I can either read and process the text, or look at / process the action (pictures). For me it is the same thing as trying to pay attention to two conference calls at the same time with a phone in each ear (is it just me that can't do this?). And it isn't just the mental processing, the rest of the screen sort of disappea…
I figure most people could probably do it with enough practice, though.