I do not want to go on about dogs but. of course. I will. Times have changed and so have the dogs in China.
Dogs in NZ seem to react to anything new - a stranger, noise, etc. A walk through the streets is guaranteed to bring a succession of barking dogs to the fence line.
Ten years ago I came across my first dog in China. It looked tired. As it ambled along (I think amble implies some sort of speed but I cannot think of another word for 'slower than amble'). It took no notice of me. Every dog I came across after that was the same - no interest in me or pretty much anything else.
In recent years, however, there has been an explosion of dogs in China and many of them are of the excitable and yappy kind. We would call them 'ankle-biters' back home - same as we call our kids - and some of these breeds are more challenging.
I have lived most of the time on the urban-rural fringes of the city where a village is only 5 mins away and 10 mins walk gets you into the fields. Dogs are usually allowed to roam freely. Many of the 'ornamental' dogs sold in the city are bred in these villages so there is an increasing number of them on the streets. Many of them are on the way to becoming feral.
With registration fees so high - it was RMB10,000 in Guangzhou until about a year ago, when it was reduced - most of these dogs are unregistered and have not had the shots to prevent things like rabies.
I just think it is best to have no interaction with dogs out on the streets.