The article wasn't as much of a persuasive paper as it was an informative. It felt like Christine Williams wanted to let people know what was going on, how the world and gender roles are changing.
In my family, my sisters and I all want to go into teaching, my brother says he won't because that's a "women's job". That shows that there still are people who feel there is a difference in "women's work" and "men's work". It is becoming more common that women will take jobs that men are known to work in, such as law enforcement, lawyer, and engineers. In our society there will still be discrimination, either intentionally or not, for both men and women going into jobs that are predominantly employed by the other gender.
This shows us evidence that there still are gender based jobs, but they are starting to become less and less gender based.