This is an important issue for millions of Americans, and for Barack and me, it really comes down to the values of fairness and equality we want to pass down to our girls. These are basic values that kids learn at a very young age and that we encourage them to apply in all areas of their lives. And in a country where we teach our children that everyone is equal under the law, discriminating against same-sex couples just isn't right. It's as simple as that.