“This is incredibly unlike our modern world. We expect a single working mother to be the one to throw the baseball with her eight-year-old, rock the newborn, read to the three-year-old, and, by the way, cook a nutritious meal, help with homework, do the laundry, get everyone to bed, then wake up and get them all ready for childcare and school so she can go work all day, only to rush home to do it all again. All alone.”