It's not just embarrassed, it's about avoiding being used as a punching bag by the local bullies the school will do nothing about.
And, yes, when the typical outcome is exclusion without any reason, or without a reason that you have any control over (such as that bully, people don't want to be around the targets because it might spill onto them) what else would you expect?
And, yes, when the typical outcome is exclusion without any reason, or without a reason that you have any control over (such as that bully, people don't want to be around the targets because it might spill onto them) what else would you expect?