I have been told that yorkies are NOT good with kids and to just think of getting another dog (thus looking for a Cairn again) because it will just never work out....I tend to disagre....
Is this true? I figured that If the yorkie grew up with the kids, cats, and dogs around then generally it would get along with them as long as there wasn't any abuse by any of them (which I would understand it not working then) and they were watched carefully?
The reason I am asking is:
We have a 4 year old that is great with our dog/cat, but worried about getting a yorkie now

I have the opportunity to rehome a female yorkie unspayed (but first thing we do), the parents now say that they have kids and it is fine with them and will do good with cats and the dog. I am just nervous now after hearing the news... The yorkie is 4 years old (?)
What additional questions should I be asking? She is AKC registered (not included with her though~doesn't bother me), up to date on all shots, "supposably" listens to commands...