Those studies don't necessarily give you a definite answer regarding age. Other studies suggest that it starts much earlier: http://www.sciencedirect.com/scienc

Those studies don't necessarily give you a definite answer regarding age. Other studies suggest that it starts much earlier: http://www.sciencedirect.com/science/article/pii/000169186790011X?via%3Dihub http://www.sciencedirect.com/science/article/pii/00016918679... Salary and work-life balance expectations definitely play a huge role in this phenomena - I'm just pointing out that there might be other factors too - factors that people often reject up front because they feel uncomfortable with them.