Ok so here’s how it works
Dads with daughters: Women’s restroom.
Moms with daughters: Women’s restroom.
Dads with sons: Men’s restrooms.
Mothers with sons: Women’s restroom.
Hope that helps.
So she shouldn't be in a bathroom with men as a teenager, but when she's 4, 5 or 6 it's no issue when she's in a bathroom with men???
I find men fighting for little girls to be in men's restrooms quite creepy.