"Bad idea" vs "good idea"-
For example, I am sure it seeded doubts in many of Fukaimi's youth, who already have challenge to ward off, the outside world's ideas
Or the little girl, who seemed with very high potential. The benefits might be seen only after years-
Maybe the girl will run away and ask to study in the Academy, being the first Fukaimi girl to train as ninja.
But many people there are unhappy, and their followers will frown on the Ishikawa clan for humilating the "holy people" who help and guide them.
Nozojo will be unhappy, because he try to please every faction, beliving the village is very fragile.
Most ninjas would LOVE Jirou for doing it- nobody from the Shinobis like Fukaimi.
And beside, Jirou IS young.
On the long run it's another step into his role as leader-