Why don't they speak up?
Statistics from the 2012 Indicators of School Crime and Safety - PDF show that an adult was notified in less than half (40%) of bullying incidents. Kids don’t tell adults for many reasons:
Bullying can make a child feel helpless. Kids may want to handle it on their own to feel in control again. They may fear being seen as weak or a tattletale.
Kids may fear backlash from the kid who bullied them.
Bullying can be a humiliating experience. Kids may not want adults to know what is being said about them, whether true or false. They may also fear that adults will judge them or punish them for being weak.
Kids who are bullied may already feel socially isolated. They may feel like no one cares or could understand.
Kids may fear being rejected by their peers. Friends can help protect kids from bullying, and kids can fear losing this support.