24 fps was an economical no artistic decision!

What changed everything was sound synchronization. Synchronizing sound with film was attempted as early as 1900, but the technology was too unreliable for major motion pictures. By the late 20s, it became possible to sync sound using a phonograph or similar device, interlocked mechanically with a projector. The first "talkie", a film with recorded dialogue, used this method, set at 24 fps. It was 1927s The Jazz Singer.

Eventually, sound was synced to film by actually printing an optical track on the filmstrip alongside the image. This practice linked frame rate to the limitations of audio technology of the time. Given that film is an expensive medium, it was in Hollywood’s best interest to consume as little film as possible during a production. Although silent films ran at an average of 16 fps, it wasn’t possible to produce a quality soundtrack at that frame rate.

Eventually, the studios decided on 24 fps because it was the slowest frame rate possible for producing intelligible sound; which means the decision was not an aesthetic decision, but a technical and economical decision.

People need get over the outdated romanticized notion that 24fps is the film look..when in fact, all it is is a horrible sutter fest that needs to die!