Ella, my ex breed bitch, had never seen kids or been socialised with them, she has no clue how to act and so just shouts at them!
I do not have 'access' to young children to desnsitise her, so really it is a case of my responsibility to ensure she cannot hurt or scare a young child.
I have three dogs, all different types and although Cooper, my JRTx is a great little dog, I would not leave any of them alone with a child, regardless of age!
the child can do things that you would not know about and all it takes is one second of behaviour to worry the dog, and then accidents can happen, the dog would not be able to tell you what had happened, and society always blames the dog!
just my opinion, but any dog can and may bite if given enough provocation, I for one would rather not take the risk.