how to prevent sexual violence

this society is to be more violence then past. so crazy accident have often happened many times. and the crime of child is also increased. 
most of child crime is sexual violence, and we can think why it is focused on child,
I think that it's easy to make sexual violence to them. 
most of children still don't make situation of basic mental. so criminal can be violence for them. so they can do sexual violence to them.
and they can cheat children from something. if they give children a favor. like buying something. so it's easy way.
and junior high school or high school student want to get the money, at that time, most of student want to get new item. so they are try to get money from adult. so strange person can abuse this kind of way. and then they can do sexual violence.
so first thing to prevent method is the education. if teacher can educate the children about sexual violence. and what it is sexual violence. 
then they can understand what is sexual violence.
than second thing is that government have to make strong policy about sexual violence. like they can designate people who are citizen policer. and government have to strong control criminals. 
then it will not be happened more. however it's also hard to prevent all of crimes. 
all of people who are adult have to protect around of our society.