I don’t play about punctuality. If dinner reservations are at 8pm, I’m more than likely arriving at 7:45pm. I respect everyone’s time & I expect the same!
Your daughter just got her first period.
Do not tell her she is a woman now.
Tell her what estrogen does.
Tell her what progesterone does.
Tell her her cycle has four phases and each one will feel different.
Give her information. Not a new identity.