This was based on the bakufu's commitment to maintaining a soryo (heir)-led family oriented relationship among shogunal retainers and their families and retainers (soryo system) and the financial base (territories of shogunal retainers), and was intended to exclude those who disobeyed orders from soryo or parents and who got away from discipline as obstacles to service to the bakufu.
これは、御家人及びその一族郎党が惣領を中心とした族的結合（惣領制）と財政基盤（御家人領）の維持していく姿勢に基づくもので、惣領もしくは親の指示に従わず統率を外れるものを幕府への奉公の実行に対する障害とみなして排する意図があった。