My school taught by hiring models of tz’nius as teachers.
The topic of tz’nius was rarely discussed; it was self-understood that we were to be tzanuos.
R’ Dr. A. Twersky writes that a mother imbues her child with a feeling of disgust for that which is repulsive to her- the child observes his mother’s reaction, and this becomes his own reaction unless he consciously attempts to overcome it.
That’s why I like neither mice nor mini-skirts.