On reflection "society would cease to function" is a dramatic turn of phrase, but my point is that if no one cooked, cleaned or cared for children things would disintegrate. You wouldn't say a paid cook, cleaner or childminder is of no value, so why should it be worthless to society just because no one is paying you?
Of course I get the notion that most people work and do these things (and for most of my life I have both worked in a very busy full-time NHS role and done all this), but with the example of childcare, why is paying another individual to do it so that you can earn money inherently better than temporarily stopping paid employment and doing it yourself, if in the short-term that's what works for you and your family (for example, if one persons job involves very long hours and frequently flying abroad?)
And why are we so fixated on work/income being the main marker of your worth to society? Or is that just the natural consequence of capitalism?
I actually find it very problematic that in our economy the vast majority of parents need at least two incomes to survive - not every society is like this.
It's equally problematic that when one parent chooses to go part-time or stay at home, 99% of the time it will be the woman (who then gets shat on by other women for doing so), but given the gender pay gap in the short term for most couples this is the solution that makes the most financial sense.
Again, other countries both have much more equal pay than we do and actually pay all families decent amounts of child benefit and cover childcare costs so that working parents aren't so stretched - I'm thinking of Germany where some of my relatives moved to. They do not want to return to the UK because raising children feels easier out there partly because of much more government funding towards childcare which means their work actually pays and they don't have to constantly work just to pay for the roof over their head.
I see a lot of quite masochistic women on these boards almost boasting about how hard they work while raising children, but honestly other countries demonstrate it doesn't have to be this hard.
As an aside I'm a member of the women's equality party and have publicly campaigned against pay inequality and for women's rights in general, but I don't agree that temporarily choosing to be a SAHM and contribute to society in non-paid volunteering roles (which ironically are all women's health charities) is equivalent to being a 1950s housewife with limited choices.