It’s true, though..While I know of couples that reversed roles and did so successfully, they were the exception, not the rule..The second job has consistently been claimed in multiple studies to net less than 20%, with 80% going to paying for the extra car or other transportation, day care, and so on. I would guess it’s less than that because of the health costs that the kids are going to incur in daycare. We’ve recreated a situation like the NYC 1880s tenement in our day care, with kids below the age of 6 being absolutely bombarded by viruses and bacteria. As a result, asthma and other diseases caused by viruses have gone through the roof..It’s striking: earlier this year, the local school district said that it was “normal” for kids to have a cold almost every week. Compare that to when I was in 1-12 and it was typical for a kid to have a cold once a term.