Most women have always worked (at something other than homemaking), outside of the postwar Americana Era, but it used to be more life-stage related and a lot of women worked in family businesses or side-gigs.

I see more of that, as people view work more flexibly and resumes become more random.

The "get hired by big company at 20, work full-time until 65, then retire and get a gold watch" Era is basically over.