[giantg2]

"Is there anyone here who would let their 6 year old child play, unsupervised, with a random pit bull? How about a random chihuahua?"

Neither - they shouldn't be unsupervised with "random" dogs.

[defen]

That's why I presented a hypothetical question. It's like answering the trolley problem with "make laws against tying people to railroad tracks". Hypothetically speaking if you had to leave your kid with one or the other, which would you choose? Or would you say "doesn't matter"?

[giantg2]

It's a false tautology and not representative of reality. There would be other traits and scenario details to observe that would be better indicators.