Here's an old video of a woman giving birth on her hands and knees.
The original title of this video was "A Birth Video from 1994". I wrote that without watching the video again. It's actually from 1992.
I think I should also mention that this video is not mine. I found it somewhere on the Internet.
Edit 2: Wow, 2.2 million+ views. Thanks for watching, everyone. And I'd like to say again that I really have nothing to do with this video other than the fact that I uploaded it. And I can't read or speak Japanese either. So I can't really answer your questions about why some kids are watching the birth or why she's giving birth in that position.