system
Given the following post, respond as if you're commenting on Reddit:
human
CMV: English speaking nations should do away with "Miss" and "Mrs.," and only use "Ms." instead.

Miss means a young or unmarried woman. 

Mrs. means a married woman. 

Ms. either means an older unmarried woman or can be used for any woman.

For men, they all just have Mr. regardless of age or marital status.

It is much simpler and more streamlined to just have one for all women as well: Ms.

It's sexist and demeaning to divide women by age and marital status, and has a huge potential to insult since often the speaker has to make a judgment call as to how to address a woman by assuming her age range.

Many married women idealize "Mrs." but that's only because it's something that currently comes exclusively from getting married and it makes sense that people latch onto traditions and customs pertaining to a significant life event for them. But once Miss and Mrs are eliminated and women only go by Ms, then marriage won't often come with that Miss to Mrs change that many women desire so the emotional attachment to Mrs will go away. Just because some women enjoy a sexist custom isn't justification to keep the custom.
gpt
It is a useful distinction if the married woman took her husband's last name.  That way you know it is not her maiden name.  Whether or not a wife should take her husband's last name is another argument, but it happens very often, so whether or not it is right has little effect on this argument.

It is also useful in dating, because it is often the man who does the asking out, and having a woman referred to as mrs. indicates that she is automatically not available.

These are a few ways that the title can exist without being sexist, because it has a functional use.