Now that the girls are what educators and marketers call young adults, I’ve heard it suggested that we stand back and let them make mistakes, give them “agency.” But no one’s seriously recommending we abdicate power to teens, right? I mean, think about it. Their prefrontal cortexes aren’t even talking to the rest of their brains. They’re slaves to their amygdalas, fighting or taking flight robotically, without the benefit of reason. Fully half of them get boners during calculus.

