There has been a great deal of language change to avoid seeming sexist.
Instead of Chairman....you now often see Chairperson
Instead of fireman....you see fire fighter
instead of policeman...you see police officer
you can even hear of a maintenance portal cover instead of a manhole cover
The first three are reasonable substitutions but the last one carries it to the extreme...for me anyway.
It seems that nowadays we are taking great pains not to offend.
This extends to other parts of the English language...not just regarding gender.
He is not mentally ill .... he is mentally challenged.
A man is not a bum or hobo ..... he is homeless.