For centuries, only men have been allowed inside. That is a men's sport. Thus, women should not enter a Sumo ring. But now, things are starting to change. So even Sumo needs to adapt itself to the changing world.
Women face discrimination outside the doyo, too.
There's only one woman among the current 19 cabinet members. But this, too, is changing. Childbirth is not on the list of reasons for which members can miss sessions. Only one other lawmaker has been pregnant during a parliamentary session, and that was half a century ago. Women politicians handed to a parliamentary panel a petition calling for maternity leave for legislators.