"Nie jesteś dziewczynką."

Translation: You are not a girl.

[va-diim]

What kind of thing is that to say! Is it to a boy wearing a dress?

[immery]

My first impression is to a young woman - You are a grown woman now.

Polish sentence uses diminutive- a word that is perfectly neutral, but used for girls in age 0-12?

but what you said could happen too.