Many women experience sexual assault first hand, it's not a small percentage.
According to RAINN, 1 in 6 American women have been the victim of an attempted or completed rape in their lifetime. Additionally, 1 in 3 women and about 1 in 9 men experienced sexual harassment in a public place.
Young women are especially at risk, with 82% of all juvenile victims being female, and 90% of adult rape victims being female. Females ages 16-19 are 4 times more likely than the general population to be victims of rape, attempted rape, or sexual assault. Women ages 18-24 who are college students are 3 times more likely than women in general to experience sexual violence.
Estimates of sexual assault vary based on definitions and methodology, but generally find that somewhere between 19–27% of college women and 6–8% of college men are sexually assaulted during their time in college.
Those numbers are disgusting. Take a highschool class of 30 15 girls there is a good chance 2 of them have been sexually assaulted or will be.
In 100 person college lecture there is a good chance that 13 women in the class have been/or will be sexually assaulted.
I guarantee a female relative of yours has been sexually assaulted, more than likely by a male relative or family friend.