My five-year-old loves The Magic School Bus . He likes when I paint the windows of my truck with planets, stars, and rocket ships to resemble Ms. Frizzle’s shape-shifting vehicle of discovery. He wants adventure, curiosity, and whimsy.  Recently, I took us on a field trip to the planetarium for a show on the spring sky. At the end of the presentation, the astronomer asked if anyone had any questions. My child’s hand shot up so many times that she had to give some other people a chance.  Parenting my son and his two-year-old brother is a constant exercise in curiosity. They force me to “Live the questions now,” as the Austrian poet Rainer Maria Rilke once wrote. My children have taught me to sit in the discomfort of not always knowing the answers. To me, living the question means embracing an openness to the idea that everything I think I know about myself might be wrong. As long as I am alive, I welcome the possibility.  After all, for years I was wrong about being straight.…