Yeah there's so many small pervasive bits of sexism that are so easy to overlook because they've become a part of life. The big and the small all screw us over.

I'm liking your writing so far, though I haven't read too much of your fanfic yet, but I definitely plan on it. And the fact that you actually like it and are working at it, I think is important!

The documentary actually looked interesting to me because I do not ever want to have kids, at all. So I guess I am going to be looking at it from a completely different angle than you since I am childless by choice (which is a bit of a privilege, I realize). And I have heard it from various family members that I will change my mind and I'm going to have tons of babies! They aren't really jerks about it, but I know some people definitely can be.
But Yes I agree with you completely - I don't understand why random people get so upset at strangers personal life decisions. I can't comprehend any reasoning to that at all!