Honestly, I think the lined between bullying and teasing has blurred and people don't know the difference anymore.
But if we're focusing on those that are truly and honestly being bullied, I have a few words.
But regardless, this is a different time than when I was in grade school. When I was in grade school, I was bullied harshly all the way up to Middle School. And I mean I had rocks thrown at me, girls/boys told me to go die and kill myself because I was "fat" and "ugly" and no one would ever love me. And my teachers told me not to be a tattletale and to learn to not let "the little things" hurt me. So I grew up to have a very thick skin, but I also learned not to tolerate it if anyone tried to mess with me.
In High School a lot of people didn't like me because I had grown to be so cold. I've learned since then, but in hindsight, being bullied wasn't the way to learn how to be thick-skinned. No one deserves to be bullied ever, they will learn as life goes on that the world is a cruel place and they need to grow a thicker skin over time, but bullying doesn't have any need to play a part in that lesson. If anything it aided in making me feel worthless, unloved, unwanted, and never good enough for most of my life. Today at 20, I still struggle with self confidence.
Kids could be cruel back then, but now a days some kids can be horrid little monsters.