It may or may not surprise you to learn that not all homeowner's insurance companies cover all dog breeds. Did you know that prior to reading my sentence? I sure didn't know it prior to owning a house and subsequently purchasing a "dangerous breed".
Dobermans, among others I'll list below, are considered to be "dangerous dogs". There's a varied amount of politics and a small amount of statistics that goes into what makes or breaks a breed's reputation. Actual bites and attacks are one of these things, obviously, especially against children. The fact that all dogs have a mouth full of big pointy teeth is another, with varying PSI of bite pressure ability is another, though I don't think most people think too hard about that.
It's an issue. I'm not saying it isn't. But can you guess who I think is to blame? Poor dog owners, bad breeders, and people (yup, that includes kids) who don't know how to act around dogs.