Especially before gekokujo (an inverted social order when the lowly reigned over the elite) became common, such a point of view dominated and thus, like Hideyoshi TOYOTOMI in the Sengoku period (period of warring states) (Japan), a person originating from farmers or from a status not of samurai status could not admitted as bushi by definition.
特に下克上が一般化する以前においてこの認識が強く、戦国時代(日本)の豊臣秀吉のように、百姓その他武士身分以外出身の人物は当然、武士として認められるはずがなかった。