Motion blur is not just more cinematic, it’s also more natural. Shooting at 24fps creates motion blur similar to our eyes (wave your hand up and down in front of your eyes and you see motion blur). Shooting at higher frame rates, like 60fps does not create this blur, so we often perceive it as unnatural. Therefore motion blur is often added in post for films shot at high frame rates. In some applications, like gaming, or sports and wildlife films, blur is not preferred, so high frame rates with no motion blur are best for those.
This explains motion blur well.
This goes into more detail.
This discusses an interesting theory (ocular microtremor).