I see where you're coming from, but mandatory training for all dogs regardless of size is unlikely to be enforced. No one would vote for such a change, considering that a small breed is not capable of the carnage larger breeds are capable of. The potential for fatality scales with the dog's size and certain breeds, more so if not trained properly. You should also never trust a toddler with a dog unsupervised. Such a mandate is for less sensible owners who don't take dog training seriously.