Pretty sure BZ wasn't an actual child, as in baby, I think people are getting too caught up on what other people are saying and one translation. I think Kaguya only had the 2 kids and BZ is some part of the Shinju tree, it's not a real human. Idk these are just my thoughts but it seems like a lot of people think he's an actual third human child, I don't agree but who knows anymore. What do you guys think?