The normal motion blur your brain expects is about 24 frames per second with a 180º shutter (1/50 second). That is the Standard Motion Picture frame rate and shutter setting. Higher frame rates and shorter exposure times can give the average viewer slightly more detail, and high-frame-rate video of things like sporting events, especially when you go back and use slow motion to capture the action, can yield a slightly different emotional impact. When used on the big screen, like on 60+ frame rate displays or projection, it can give the majority of the audience headaches or degrade the experience. The high-frame-rate Hobbit and the experimental high-frame-rate IMAX films were not at all successful as storytelling experiences.
There is almost never a reason to deliver a video at anything higher than 30 fps with standard motion blur if you expect the viewer to just watch the movie. Adding motion blur in After Effects requires throwing a switch, and the default is equivalent to the 180º shutter in a film camera. Another consideration is bandwidth and file size. YouTube will throttle the frame rate to conserve bandwidth if the software detects a slow connection or a busy data pipeline, so some of the audience won’t ever see true 60fps playback. This keeps the video playing at the right speed, but just drops frames.
I often shoot at higher frame rates and narrow shutter angles, especially when I want to make sure I get the best possible image, and I always shoot with short exposure times when I need to do rotoscoping or keying (greenscreen) so I can get good, clean edges, but I use software to add the standard 180º shutter motion blur to the final render. It’s up to you, but I almost never deliver an edited video to a client that is not 24 or 30 fps.
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