I'm not keeping her from here. She's a legal adult now, and even before then, if she wanted on Medium, I wouldn't have stopped her.
Like I said, she's not on any social media except closed art communities. She's on YouTube a lot, artwork only. She doesn't engage.
She will just not brook any nonsense. She was raised as far outside dominance hierarchy constructs as I could manage, with as little gender essentials bullshit as I could manage.