If anyone needs any proof of that, look no further than DU. They are the most miserable, venal, unhappy assholes and scrunts on the planet. They almost all of them admit to being bullied when they were kids.
When my folks moved us from the city to the burbs 32 years ago, it was a strange transition.
There was this little damn runt of a kid who was a bully. I had not yet gotten to my current height of 6'2'. Got sick of his mouthy bullshit, told him let's go fight then. We met in a buddies backyard not far from junior high. I broke his nose & beat the snot out of him in about 2 minutes.
No one ever messed with me again. Sure, occasional teasing in high school. But that is allowed. Not crap you need to go reporting to the principal or whomever.