Why?

Our family doesn't do massive amounts of presents. Even so, on Christmas day both girls were very happy with the presents that they got. However, since then I have overheard at least two of their friends "questioning" the number of presents that the girls got. "Why did you get only # presents?" "How come you got so few presents?"

Sigh. Why do these kids care how many presents our kids got? I could understand asking *what* they got, but the number of presents?