Things do change over time, but
not necessarily the way one would think, or might deem to be desirable. Take secretaries. Once upon a time they were all male. Then, by the time I arrived in the world, the term 'secretary' came along with imnplications of referring to leggy women who were either frighteningly competent (but probably still weren;t being paid fairly for the job) or otherwise were merely a male boss's bit of fluff thinly disguised as a co-worker.
Then there's, ooh, train drivers, bus drivers, office managers., journalists, engineers (any type), scientists - all the stereotypes of those when I was little were of women in those sorts of jobs being a rare novelty. In some of those jobs, women are now much more common, not so in others. Who knows why? But there's also the hidden jobs, the ones that keep households going, and there is where the double-whammy for women hits - not only do we still tend to be paid less for doing the same as male colleagues, we still tend to be expected to do the heavy lifting where it comes to that which keeps a household going, too. And it isn;t just men being chauvinistic - many women are chauvinistic about it too. It was seeing and realising this all around me that really drove home to me the truth of Dale Spender's stance on feminism when I was young - that men are not the enemy - they are simply a part of the problem, along with women.
Humans - durned silly, irrational species, eh? :-}