I am a parent of 3 kids and I would have never expected it to be like this. Not in a bad way just unexpected haha
My sister has 4 kids so I understand.  Parenting which includes supporting the physical, emotional, social, and intellectual development of a child is tough
Yes, it is. Do you know much about parenting?
I am not a parent myself but I know that it involves the intricacies of raising a child aside from just the biological relationship
Bonding really does make a big difference from what I've seen. It is an amazing feeling
The most common caretaker is a biological parent but other options are the siblings, a grandparent, a legal gaurdian, aunt, uncle, or other family member
Families do come in all shapes and sizes. Does it have an impact on the childs future as to who raises them? Or is it a matter of how?
Parenting skills vary and anyone really may be a 
Is there anything else interesting that would be good for me to know?
Government and society can also play a role in the rearing of a child