Mostly because that will traumatize those poor little Puchis. Which kinda... does not go well with the whole "Puchi Nursery" setting.
Abua~!-I don't wanna do it!Both Nenohi and Yukikaze have caught colds...So instead, I'm asking you two to please take on the Puchi nursing mission.Abuu!?There's no one other than the two of you that I can ask to come.Kitaa!I am the one who requested it to the Admiral, you see.Yaay!Why am I doing it together with Kitakami-san!Kitakami-san will immediately play a prank on me, so-