Fear of retaliation from the molester, fear of not being believed by the rest of the family, or even possibly blamed. When I worked in the shelters women told me about actually having been blamed by their MOTHERS as children because their fathers, stepfathers, uncles or brothers were molesting them. Unbelievable.
Fear, embarrassment, victim-blaming, anxiety, stress, feelings of worthlessness. There's actually a lot of reasons depending on the girl and the situation.
Shame or embarrassment. Denial. A sense that it is his/her fault somehow. The desire to keep the family member from getting into trouble or to prevent other members in the family from being hurt. In some unusual cases, actual enjoyment or a feeling of "connection" or bonding with the abuser.
She's scared!? She's afraid people won't believe her!?
Because of the fear of not being believed. The molester has said that he/she will be the one blamed and parents or whomever they tell will be angry with them. Telling them they are disgusting and dirty.
Fear of consequences<br />
Believes she wouldn't be believed<br />
Feeling trapped and helpless
fear of retaliation, no one believing.
Being threatened by said molester..?