Personally, I would never own one because I am not a strong and disciplined owner. Ask my doxie-he knows who is boss and it is not me. :)
My son’s friend, who is a strong and disciplined owner, has one. He is the sweetest dog, a big goof. But son’s friend never forgets his dog is a pit pull. They are responsible and never leave anything to chance.
A responsible dog owner would have a different breed. Period.
Your friend's son is the big goof, and Five Bucks says he has tattoos. Feed friendly Fido 15 minutes late and leave him in the room with a baby and you might soon see how sweet he is ... and be one baby short.