Is this borne out in data? I ask because among my friends and work mates, the ones with kids tend to be doing better financially. The higher ranks of the corporation are populated almost entirely with people who are supporting families.
I followed that path. When my first kid was born, I applied for a promotion into project management, and eventually people management. (I moved back out eventually). The vast majority of people I know who moved up into management did so coincidentally with the birth of their first kid.
An ancillary question would be, how many of those people wanted to move into management?
Definitely in IT departments I've worked in, in the past, there were a lot of people in management who would have preferred to still be ICs but, for financial reasons, had moved upwards...
I followed that path. When my first kid was born, I applied for a promotion into project management, and eventually people management. (I moved back out eventually). The vast majority of people I know who moved up into management did so coincidentally with the birth of their first kid.