I didn't know about how big it was until I was in my 30s. Literally no one even told me of its existence. I'm sure I saw it on a diagram like the one you showed here, but no one ever named it or described its function. I figured out where it was and what it did as a kid and I learned how to better utilize it, ha ha, when I started doing research on sex at 19. It infuriates me the lack of knowledge we share with young women.