Some may be fine with subtitles, but the fact of the matter is that most films are supposed to be visually immersive. You simply cannot focus on important subtleties in a film if your eyes have to be focused on a line of text across the bottom. The human eye actually has a very narrow range of in-focus vision.

Not to mention the idea that cinematographers take great pains to frame every shot like a painting, telling a story visually.

Movies with subtitles is like going to a museum where they have printed the name of the artist and the background information in big white block text on top of the painting itself.