To piggyback on what FSUZeta said, it's not just celebrities-- it's in on our popular sitcomes. Not to bash the Gilmore Girls (lord knows I love it) but look at the plot. A girl gets pregnant; she runs away from her family; is now best friends with her ivy-league daugher and runs her own business all on her own. I suppose it helps having millionaire parents (even though they don't have a good relationship, enforcing that 16 year olds can do this without a problem).