Board Thread:Theories & Speculation/@comment-1512913-20141028151348/@comment-3279282-20141031140634

Elveonora wrote: It says Kaguya split her chakra with her sons, so parents split their chakra to their children or not?

She did. Not everyone else. After Hagoromo shared his chakra with the humans, they used it to connect their energies and to create their own chakra. Everything after Hagoromo and Hamura is not Kaguya's own chakra.