Where gender presentations are not equal. It is a bad thing in this world where people can't be treated equal because of gender. I wish it didn't exist but it does. Sexism can happen to men, not just woman.
One example: woman being accepted to take care of children and cook, while the man makes the money for the family.
Jack: Clara, why don't you cook? You're the woman and you should stay home and be a good wife and take care of the children
Clara:.........
Second example
Bella: you should be paying for the date. You're the man, not a woman. now go pay.
Alex:.......what........?
Commonly misconstrued as referring to prejudice by sex, sexism refers to followers of the religion of sexism, believing that "sex-" is the natural prefix for the number six.
"Dude, I justread a sexology of books this week." "A sexology? You mean a hexology?" "Dude, you know I'm a follower of sexism and you still said that."
The cost a company pays for systematically not hiring and/or promoting women. If the best person for the job truly is a woman, but the company refuses to hire or promote her then the company will pay in the long run.
If Law Firm X will not employee a female lawyer, but she then revolutionist the industry by catering to an untapped market then Law Firm X pays a sexism tax. More examples can be found in the Book Why Men Earn More.