I graduated from hs in '67. When I went to my twenty year class reunion quite a few of the female graduates had careers in a variety of occupations.
You have to look at the arc of history. Around 1940 only about fifty percent of adults were hs graduates. Until the fifties only a very small pct. of male hs graduates went on to college. It takes time. By the sixties many female hs graduates were going on to college and careers.
“The 60s”” might as well have been two distinct decades. When I graduated from h.s. in ‘62, all the girls went on to 1) teaching; 2) nursing; 3) secretarial school. That was pretty much it. By ‘67 things had changed considerably and in more ways than career choices for women.