there's a socially driven bias that leads to the expectation that female workers are less valuable than male workers.
But is that based on misogyny or is that based on the understandable expectation that women are more likely to leave or go "mommy track"? Its not that female workers are seen as less valuable perse, but that they are seen as less likely long term prospects. Changing that means changing paternity leave to match maternity leave, changing social expectation at large regarding gender roles, and possibly changing the reality of biology itself, as women face a time limit on having babies and also often have stronger maternal instincts and interests.
I think it's neither misogyny nor rational financial decision. It's social bias. It's the expectation of what is appropriate and right behavior based on the sex of the person being evaluated. You reference it yourself - addressing it requires changing social expectations around gender roles. Yes, of course women face an expiration date
if they decide they want children. But a married and monogamous man faces the same expiration date if
he decides that he wants children - and it's not only women that want kids. But women are
expected to take time off, or to interrupt their careers to care for children. Women are
expected to take off work when their child is sick. If women do
NOT take time off to care for their young children or sick children, they are considered to be 'bad mothers'. Failure to adhere to that social expectation punishes women... and adherence to that social expectation also punishes women. In addition, because of this expectation, even women who do not have children are affected by that expectation - women are promoted less quickly, in part because they 'might' decide to have kids. Women's raises lag men's because it 'might' be a 'bad investment'. This spill-over effect has impacts to women like me, who have no kids (nor ever wanted them). Because it's perceived as a risk that I 'might' want to be a mommy... and if I'm going to be a 'good' mommy, that means I limit my hours or drop my career. And even though none of that ever materialized... the fact that I am female means that it
might have... so I end up being preemptively punished for a potentiality.
Motherhood and expectations or
suspicions of future motherhood explain the gender pay gap. If your goal is gender parity and equal outcomes (and why should it be?) then this is where you should focus your attention. Get nurseries into offices, get public funding for daycare, etc:
https://www.telegraph.co.uk/news/2017/04/07/gender-pay-gap-motherhood-everything-else-just-noise/
I agree with the suggestion - in-office nursery care, better or subsidized pricing for daycare, and similar.
I will disagree that I want equal outcomes - I don't expect that to be the case. I do, however, want equal opportunity... and that includes not preemtively dinging people for 'suspicions of future motherhood'.
BTW, those expectations and suspicions of future behavior are also why black people are pulled over more often. Those expectations and suspicions without evidence, based on stereotypes and social bias, are a problem if the objective is equal opportunity. They are a barrier that is incredibly difficult to overcome.