My best friend had a pit and raised it right. Nicest dog around and would only turn defensive if someone ran up that the dog didn't know unannounced and once ya told her they were cool she would chill out. When my daughter was a baby dog would sit close to her and guard her while she was sleeping, if she started crying dog would come and grab me. Nice dogs and very protective of those that raise it correctly.
Treat your kids right and they grow up good adults. Smack the shit outta your kids and they will smack the shit out of their own as well. All in how ya raise them.