Jerry and Jessica Seinfeld Wish Their Son a Happy 20th Birthday: "Your Goodness Is Greatness"

The couple's youngest child, Shepherd, was born on Aug. 22, 2005. The 17-year-old currently has no social media and there's not much information about him online in general, but his dad occasionally comments on family life. In 2017, he told Mr. Porter that he enjoys everything about parenthood, especially the "garbage time," or the less fun parts of being a dad. "That's what I like. You just see them in their room reading a comic book and you get to kind of watch that for a minute, or [having] a bowl of Cheerios at 11 o'clock at night when they're not even supposed to be up," he said. "The garbage, that's what I love."