(Photo: Zoë Kravitz as Big Little Lies’ Bonnie Carlson doing her finest cardigan acting.) In the last couple of months, a cardigan I used to wear when I was eighteen has been haunting me. It was school bus-yellow and made of a cotton and wool blend. It was cropped at the elbows and had fat buttons down the middle. It’s neckline was v-shaped but nothing too crazy, and it hugged on my waist a bit without looking too tight. My cardigan was hip and stylish and feminine. It looked like something you could pull from the wardrobe department of any of the hundreds of young adult shows airing at the time. Nowadays, however, only middle-aged white women—portrayed by Cameron Diaz or Reese Witherspoon in the movies—wear cardigans. And they wear them under