The other day I was working out of a coffee shop, and a sixty-something woman, dressed to the nines in a silk blouse, tailored pants, and black heels, sat at the table next to me talking to her friend. “I don’t get young people, today,” she said. “They’re always dressed for yoga, but none of them are ever at the gym.” “I know,” said her friend. “There’s this brand called Lululemon. Apparently it’s “in.”” I sunk into my chair, hoping they wouldn’t turn around and notice me dressed head . . .