Because there is always that one "Grandchild" that won't settle down and be quiet.
Kiyoshimo, Shimakaze, Libeccio, Samidare, Nenohi, Miyuki, Shiratsuyu, and Uzuki.
Plus, also, other "troublesome" destroyers that have overwhelming tendencies to do things that might upset a lady, like Akigumo, Makigumo, Hayashimo, and Isokaze.
Of course, when you have hundreds of grandchildren...