It's fairly independent of culture, and where culture matters it eventually changes because women become enfranchised.
Use slider at the bottom to vary time.
https://www.gapminder.org/tools/#$state$time$value=2018;&mar...
You said "women want" and it sounded general statement. Not same as women decide to have nor actually have.
Had the price (not just monetary) of having child be different, the decisions quite easily can be different.
Citation needed, especially since we are talking about much different cultures.