From what I've heard and read about from multiple sources, is that in Japan they don't make a big deal of the black belt. That the Japanese see the black belt as simply the belt after brown, if the system has it so that brown comes right before black as lots of belt systems do. For them the jump from brown to black is not a big jump and they don't put the black belt on a pedestal the way Americans often do.
A lot of Americans I know no longer put the black belt on a pedestal like they did back when KARATE KID came out. That comes from seeing too many people who brag about being a black belt getting their butts kicked. LOL