Man, this parenting thing is tough.  Parenting is about the intricacies of raising a child.  
I'm hesitant about having kids. What are some of the responsibilities of a parent?
Supporting the kid in various ways, such as emotional, physical, social, and knowledge.  
Do people from different social classes use different parenting methods?
I am not sure about social classes, but each child is different.  It is a continious responsibility that has a unique course for every kid
When I was growing up, my parents just used to hit me with a belt if I did something wrong.
That can be considered abuse by some.  The government and society itself have some role in child raising too
I wish the government would of taken me away from my parents because I was raised in a bad environment.
Child abuse
Child abuse or child maltreatment is physical, sexual, and/or psychological maltreatment or neglect of a child or children, especially by a parent or a caregiver. Child abuse may include any act or failure to act by a parent or a caregiver that results in actual or potential harm to a child, and can occur in a child's home, or in the organizations, schools or communities the child interacts with.
The terms "child abuse" and "child maltreatment" are often used interchangeably, although some
Parenting
Parenting or child rearing is the process of promoting and supporting the physical, emotional, social, and intellectual development of a child from infancy to adulthood. Parenting refers to the intricacies of raising a child and not exclusively for a biological relationship.
The most common caretaker in parenting is the father or mother, or both, biological parent(s) of the child in question, although a surrogate may be an older sibling, a grandparent, a legal guardian, aunt, uncle or other family member, or a family