but do you think it is relevant than when we describe someone we always use there gender?
If I was telling you about meeting someone in a bus stop and I said "this black guy" I would get pulled up as the fact that the person was black is irrelevant to the story. But you wouldn't necessarily say why is the fact that he was a man relevant?
But in most cases gender is also irrelevant, but we almost always describe a person as a woman or a man not a person. And in cases where a gender neutral term should be used (doctor, police officer, EMT) a qualifier will be used especially if the gender doesn't fit the stereotype, lady doctor, male nurse, female police officer.
Should we be making an effort to totally stop using gendered language?