They can also provide a safe means of transport to and from school or suggest their child walk in a group, never alone. They really have a low self-esteem. They may look high and mighty but that is arrogance. Don't mistake arrogance for a high self-esteem. If someone truly has a good self-esteem they would not feel the need to control others.
Bullies create more bullies.
This is no good. The cycle needs to stop somewhere. You're better than that. Just walk away. Be aware of conflicts and not be afraid to get involved.