My sister was assaulted at 14 because she was on the bus. Should she have never taken the bus again?Most girls know that they are vulnerable. One in 4 girls is sexually assaulted by the time they reach 25. That happens not because they are drunk, not because of how they were dressed but because they were girls and in the world.
It's not a question of them having done something wrong. The over riding concern is how society values girls/women and their bodies. 
It's not victim blaming to tell people how to protect themselves however it is victim blaming to insist that when violence happens it's their fault.
Let's put the blame were it belongs. On the perps.