TheDigitalArtist/PixabayI didn’t plan on seeing Greta Gerwig’s new film Barbie until I read a review that mentioned she dons Birkenstocks partway through the film. It’s only today that I recognize that Barbie, that impossibly figured plastic doll, inspired me, too. In that way, I think Barbie helps decode why parents sometimes feel envy and disdain for those of us without kids. Picture Barbie and Ken growing up, if you will, in a world of peril and possibilities. In my world, Barbie never uttered a word about not having kids.