I hope that the uncertainty, lack of authority, and amateurism that I ascribe to up-speaking is rightly placed. I hope that it's just a matter of cultural norms that young women are the most likely to speak this way.
But what if there's nothing intrinsically grating about up-speaking, and instead it only reminds us of young women?
I've convinced myself that it's the former, but it wouldn't blow my mind if I were wrong.