Board Thread:Naruto Discussions/@comment-31278419-20170211023835/@comment-734582-20170214170035

Ancladar wrote: WHY DO YOU LEAVE THE WALKING ATOM BOMB ALONE AND THEN LET PEOPLE GET AWAY WITH ABUSING HIM. Because it's been insanely hard to control a Biju, to the point that we only know of two Perfect Jinchuriki? Konoha's policy pre-Naruto was to simply jail Kurama without using them as weapons.

Even Jiraiya had trouble with teaching Naruto, to the point he nearly died.