Let’s examine this:

Miss is a word for a woman that has not been married.

Mrs. is an abbreviation of the word Mistress, used as a title for a woman that is married or widowed.

Ms. is a title used for a woman whose marital status is unknown or irrelevant (as in business).

The letters Ms. are not an abbreviation of a word, they are an amalgamation drawn from the letters of Miss and Mrs.

On the other hand, a man is just a mister (Mr.)

You see men don’t have to determine their sexual availability like women.

Laila Alsabahi (via boldnative)

This has always bothered me. I will always only want to be addressed as “Ms” and will only address others the same, unless they specify. We have to stop defining women based on their marital status, as if their only worth comes from their husband. It’s wrong. 

— Brittany 

(via foreverliberal)

I agree with Brittany.  I will only use the word Ms. from now on unless specifically told by the female in question to do otherwise.

(via religiousragings)

I’ve always gone by Ms., when forced to use a title, and I’ve always used Ms. unless the other person specifies something else.

(via sprackraptor)