I agree. Part of the problem is that adults tend to hold kids to a much different standard than they hold themselves. For instance, as an adult, if I'm working in a company where verbal bullying and harassment is a problem, and HR does nothing to address the situation, then I'll just give my two-week notice and move on to another company. Kids on the other hand don't have the option of giving their two-week notice and moving on to another school because of a 'hostile work environment'.
How many adults do you think would stick around at a company if they had to put up with the level of violence and harassment we subject our kids to in schools? And if the only response they got back from management and HR was a "sticks and stones" speech? Forget about it! Which highlights another difference- it's also in a company's own self interest to address these issues seriously, because if they don't, it's gonna effect their bottom line when good employees start leaving. But, what motivation do schools really have- it's not as if their "employees" (students) get to quit if they don't like the way they are being treated.
What does this teach kids? That there is no justice in the world except that which you take by violence?
My son is only two and a half right now. When he gets older my advice to him will be to first go through all of the proper channels in case bullying comes up. Give the system a chance to work, and get some documentation that you did so. And if it does work great. And if it doesn't, a right-cross to the bully's nose is what worked for me when I was a kid. Will this stop the bully from picking on people? Probably not - but it will likely make him stop picking on you. He'll move on to the next victim - one who won't fight back.