What is a "Good" child?

We can often hear conversations around us where parents telling their children, if you do this, you are a good; If you do this you are naughty. What is the definition of a "Good" child? A child that always follow the parents instructions? Always perform well in the schools?

I guess this is a very good topic to discuss about. More and more younger children are suffering from mental health issues and the need of improvements and to address the symptoms are often neglected. What causes that?

Let's discuss!