Financial reasons could be capturing a number of different considerations including low income growth, the rise in household debt or child care costs. https://www.rba.gov.au/speeches/2019/sp-dg-2019-11-26.html  4/21  11/26/2019  Employment and Wages | Speeches | RBA  Graph 3  Research suggests the cost and quality of child care does have a significant effect on the labour supply of women.
[4] Data from the HILDA survey show that the share of households using formal child care for young children has increased notably over the past decade (Graph 4). However, access to child care places and financial assistance with child care costs remain ‘very important’ incentives for females currently outside the labour force.