No one who knows what they’re talking about, but I’ve absolutely seen that argument advanced on multiple occasions, albeit usually with 30 rather than 24fps.
Last time I heard this crap in real life was back in 2018. Things have progressed immensely over the last decade, though. Now almost everyone "knows better" due to relentless marketing from big companies, including phone and TV vendors.
Before that, 30 was totally fine for the masses. In fact it was preferable. Cinema is the last big holdout and, apparently, it's going to take at least another decade before even mere 48 is standard. As someone who has been riding the 120+ fos for over two decades, going to the movies is awful, especially action scenes and panning.
24 fps is the standard for cinema because that gives the preferred look for most content, with nice looking motion blur and whatnot. High frame rate may make sense for some movies, but it's not a win for the whole industry to go 48 or 60 or higher.
I'm not sure what you're getting at with the 120 fps comment, because that is obviously not the frame rate of the finished product, so it's not the same conversation.
The whole 24 FPS thing is mostly historical. I don't like it. Nor do I like motion blur.
The 120 fps was regarding games. While movies are passive, they could still benefit immensely by doubling to 48. Not every scene in a movie is people talking and this is where 24 stops being adequate. Even YouTube has had support for 60 FPS videos for years.
I know it's not a win for the movie industry. They ought to hate it, especially the artsy types.
30 was not fine for the masses. 60p and 50p were too hard to make work at the dawn of tv, which is why we had 60i and 50i, but 60i is not the same as 30p, and also note the NES runs at 50p or 60p (as do similar systems) and it's darn hard to play most of its games with less.
Don't know if cinema will ever drop 24fps. The shift to higher frame rates is of questionable benefit as it just makes movies look like TV shows. It seems 24fps is what makes a movie feel like a movie.
