Capes and cloaks are practical fashion accessories. They always hang properly, always have stiff collars that never fall over or flop around, and always conveniently trail behind you when moving at high speed at shoulder height, which obviates the possibility of getting tangled up in it and wiping out.
Impalement through any part of the body is merely an inconvenience, not a reason to visit the trauma unit of the local hospital.
People standing on objects several times too thin to support their body mass are a commonplace occurrance.
The fastest mode of locomotion is telekinetically-enhanced high jumping.