Chinese customs based on Chinese sense of privacy?

The sense is now changing.So the answer should split:

1. In super metro cities such as Beijing,Shanghai,Guangzhou,etc.,the sense is pretty similar to what western society have.

So,dealing with those people should be no problems.

2. In less developed areas,asking about salary,family member,personal lives,etc,would not be seen inappropriate. Instead,it is an expression of concern.Don't feel offended.