He of course says that this trend is more possible in highly qualified women whose husbands bring in a fat paycheck: Single parents and low income families don't have an option of quitting since their incomes pay for basics rather than luxuries.
In my opinion the author seems to be right on one count. The cost of living is phenomenally rising. According to the National Association of Realtors, the median single-family home price in July was $217,900, which has increased dramatically compared to ten years ago. This makes the " American dream" a little beyond the reach of an average family. Trying to make ends meet on a single income is often an uphill task in today's cost of living.
Parents, especially mothers who return to work after having babies face an extraordinary amount of guilt and agonize about the childcare arrangements. The current corporate culture offers six to eight weeks of maternity leave and often the child is totally not ready for daycare, making a difficult decision of returning to work more complex. Spouses who travel a lot cannot pitch in and this requires more juggling to accommodate changes.
Today the demands and expectations in employment are high and often returning to work means a total lack of time to spend with the children.