From that aspect, for sumo wrestlers who have chankoban experience in particular, it is not uncommon to work for those restaurants after retired from sumo although they don't open a restaurant.
また、この様な店であるため、とくにちゃんこ番経験のある力士にとっては、自身で開業はしなくとも力士引退後の再就職先となる事も珍しくない。