Of all the breeds she had to pick from why did she pick a pit bull.
She admits the expensives decision has caused her to put up a large fence and keep watchful eye on the dog.. Why would someone voluntarily commit themselves to an animal they know is a risk when they get it. I have a friend with a large Boxer. The dog is super friendly but even when it is playing it hurts you. The thing is strong and plays hard., and is hard to control when excited. Imagine this strong dog as a pit bull that might turn on you at any minute and it’s a nightmare.
Sadly, many people have wrong ideas about "play" with their dogs and can actually encourage aggressive behavior through it or they simply don't think that an 80-100lb dog could hurt them if they jump, scratch or whatever and they fail to train their dog accordingly.
My brother has a smallish dog that he has turned aggressive through aggressive play and rough housing. He's bitten several people and I won't have anything to do with the dog or let my kids around it. People also don't really take it all that seriously because he's only about 25lbs and they think it's "cute."