Well, woman in her mid-40’s speaking up here.
I think sexism against women has gotten better over time, but it’s not completely gone.
As an example: I wanted to take shop when I was in 7th grade. As, at the time, with my mother being seriously ill to the point of being incapacitated for better than a year and I was doing the menu planning, shopping lists, and most of the cooking for the family a home ec class seemed supremely stupid to me. I wanted shop because it was different. This was unprecedented. We had to go to the school board to get me permission to take shop class! It was still controversial at the time I did it. Funny though - within 10 years shop was required for all girls. And home ec for all boys. Actually, everyone had to take both, which was arguably much more fair and better preparation for the world than the prior circumstances. So there’s a case where sexism eased for both genders. Things have changed.
From later on in life - I earned a pilot’s license. Now, frequently, when encountering the general public in airports the average layperson nearly always assumed any male companion with me was the pilot and I was girlfriend/wife/hanger on. That’s sexism. On the other hand, actual aviation people from the receptionist at a terminal to the line personnel to other pilots seemed very non-biased towards whatever collection of people climbed out of an airplane without regard to age, gender, race, or whatever. Yes, there are exceptions, but I’m saying 90% of the time aviation people were unbiased in their behavior despite aviation still being 80% male in this day and age. The general public… not so much, still displaying bias that I believe is based largely on fictional stereotypes and ignorance. Oddly enough, I have encountered the “you can’t possibly be a pilot” meme more often from women than men, and occasionally outright hostility, as if they are threatened by my having a pilot’s license.
Car salesmen and real estate agents. Yes, I am lumping them together. I have most certainly encountered jerks who refused to look me in the eye, shake my hand, or answer my questions directly, including one who, when told point blank by my husband “You better answer here questions and speak with her, she’s the one with money” still would not speak to me. Again, though, this is improving. The last two times I purchased vehicles I got a definite sense the salepeople where eager to address the concerns of both members of the couple equally. No one batted an eyelash when I declared I wanted to look under the hood while the husband was the one concerned about colors and interior surfaces - the opposite of stereotype. I now have confidence this will be the ordinary experience going forward, though if an unreconstructed troglodyte male chauvinistic pig (who could be female) appears I wouldn’t be totally shocked, either. They are out there.
I currently work with a general contractor painting houses and doing various sorts of landscape maintenance and light repair work. My appearance as such does strike some people as unexpected and unusual. This, to me, is not entirely strange - men do have an advantage in brute physical strength in this line of work. I’m not sure the average woman of my age is physically capable of doing what I do - quite a few men my age aren’t, either. Some people are dubious about my ability to do the job, though I usually win them over by actually doing it, resolving their doubts. Some fellow laborers do regard me with hostility, possibly because they think I might have some unearned advantage (i.e. get lighter work due to less physical strength) or I’m taking a job away from a man (yes, I have heard that expressed explicitly). It is an area of work that is still very heavily male dominated and probably will continue to be so. I expect men who are nursery school and elementary school teachers face some of the same (although no one worries about me molesting ladders, cans of paint, or drywall, unlike teachers who do have to worry about accusations).
In some cases, the bias seems to be more towards being a minority in an area rather than female per se - black pilots, for example, also experience occasional episodes of bias. Some of this is outright bigotry, some of it is not meeting the expected image of something
I could give more examples, but this post is long enough. In sum, while sexism has definitely diminished it is by no means absent from society. I don’t think it is severe enough to cripple an ambitious girl/woman, but it is pervasive enough to affect their decisions about what they do with their lives, what careers they may consider, and to be an annoyance in life. Not every woman is an assertive, outspoken tomboy such as myself. The bias that still exists does exert a subtle influence on woman even if it is not the major determinant it used to be.