Do you know about parenting
Sure. Successful parenting is all about promoting proper development of a child's physical, emotional, and social health.
yes, One who cares her children is said to be parent 
It's been said that the quality of parenting is more important to development than the amount of time spent with the child.
Not only spending time is important they also need to understand the child
Yes, not all parenting styles will work for every child because they are all unique and have different needs.
Yes very child has a unique character so comparing with other child should not done
This is why developmental psychology is such an important topic to understand for proper parenting and ensuring children become successful, functional adults.