It’s 8 on a Wednesday morning in January, and David Carroll’s Brooklyn apartment, a sunny, wood-beamed beauty converted from an old sandpaper factory, is buzzing. His 10-year-old daughter, dressed in polka-dot pants, dips out the front door and off to school, Jansport backpack slung over her shoulders. His 5-year-old son darts into the living room in a luchador mask he picked up on the family’s holiday trip to Mexico. (His wrestling name, he tells me, is Diablo.

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