Why kids lie...

Gwenchik saw a chapter in the book "Nurtureshock: the new thinking about children" a chapter heading "why kids lie" and was surprised that people write books about it.
Gwen: Isn't that obvious?
Me: Do you know why?
Gwen: Of, course. Firstly, they lie not to get caught doing something bad; secondly, kids lie to not upset their parents; and thirdly, kids lie because they think that they can get away with it. Why is the book so thick?

Peer acceptance

Gwenchik got back from her first day at a new daycare.
Me: So, how was it?
Gwen: It was so much fun!!! And I got a present!
Me: Who did you play with?
Gwen: Jasmin
Me: What about other kids?
Gwen: Angela told me that she will not play with me because I am mean. But, of course, she lied to me, because I am not mean at all! So I told her that it is really bad when a person lies so obviously.