The world is your oyster?

Madeleine, my first grader, has been learning about the Presidents and money. We have had lots of questions about who is on what denomination or coin and why. And then Madeleine has been asking more thoughtful questions about why has there only been one black President and why has there never been a President who is a woman. I love that the world is her oyster and in her eyes it does not make sense that the leader of our nation does not have more variety than a white man. I wonder when the reality of life will begin to set in and she will realize that the world is not her oyster, that there is racial inequality, gender inequality, and socio-economic inequality?