Srila Prabhupada in a lengthy talk about womens’ dress, hair, etc.
Prabhupada: The lusty desire is so prominent that whenever they will get some opportunity. Therefore it is ordered that you should not remain alone even with your sister, with your daughter, with your mother — and what to speak of others. Sastra says, matra svasra duhitra va naviviktasano bhavet [SB 9.19.17]: "Don't keep yourself alone even with your mother or sister