However, since the decline of Gokenin (shogunal retainers of the Kamakura bakufu) resulted from not only the burden at the time of Mongol invasion attempts against Japan but also the downsizing of mid- and small-scale Gokenin to ultrasmall-scale Gokenin due to the Soryo system (the eldest son system for the succession of the head of the family) referring to division of succession, and from being buffeted by the progress of monetary economy, it was impossible to stop such a big movement.
しかし、御家人の凋落は、元寇時の負担だけではなく、惣領制＝分割相続制による中小御家人の零細化、そして貨幣経済の進展に翻弄された結果であり、そうした大きな流れを止めることは出来なかった。