Some additional anecdotal information on the above comment:
My wife absolutely loathes being called "girl". It is used to reinforce the toxic idea that women are less mature and capable than men. Same feeling from other women that I've discussed this with.
it's important not to allow age-based vocab to drift when you are talking about a woman vs. a man, but I think it's more contextual than you present it. there are plenty of males over the age of eighteen whom I would not refer to as "men". if you changed only the gender of these people, I would probably not refer to them as "women" either.
As in engineering, it's helpful to use proper terminology with people:
if using a gender is necessary for the narrative …
- under 13: girl
- 13 – 18: girl / teenager / young woman (depends on context; 16? – 25?)
- 18 or over: woman