I figured that this was more of less rational. In Australia, men have more options for decent traditional jobs without a degree. Construction, Manufacture, Mining, Agriculture, fisheries, warehousing, transport, utilities are all male dominated sectors, mostly not requiring a degree. Retail, food and accommodation services only just skew female. The big area where women are employed in much greater numbers than men is nursing/social work and teaching. All of which are increasingly becoming bachelor degrees. Historically these didn't require a bachelor's degree, just one year diploma or a two year or certificate. There is a trend for these work forces to become more qualified, take more responsibility and get paid more. Industry stats: https://lmip.gov.au/default.aspx?LMIP/LFR_SAFOUR/LFR_Industr...