The pyjama side of fighty stuff has that sort of weird discipline side to it. Bowing to people, rigid lines, do what you’re told, speak when spoken to… Which might help lead a particularly odd person to those lengths. “You are weak! You will never be ninja!” <smack> etc.
Fighty stuff that is approached more like a sport (including judo, despite the jammies) is generally less like ‘The Cruel Tutelage of Pai Mei’. (U-Tube it!) Oh, and may actually work, if that matters.
I’ve got a theory that with your more sport oriented arts, you need to be able to back your words up with ability, therefore they attract less of your “BOW TO YOUR SENSEI” type of halfwits.