Sorry but thats the worst reasoning i've ever heard when it comes to this FPS debate. 24fps is a bad framerate. Even for movies with the "prerendered motion blur", which helps to smooth the video a bit, its a stuttering mess. Comparing it to watching static photographs makes no sense, an inherent quality of video is it not being static.
Don't forget that 46 fps was determined by Edison to be the minimum viable framerate to not cause eye fatigue but then it was decided to go down to 24 to lower the cost of movie productions. 24fps is literally just the low budget option.
The higher the fps the smoother the video the better the video. I'd pick 720p60fps over 1080p30fps any day if im somehow limited by bitrate restrictions.