It is not necessarily male. The noun is of indeterminate sex and and the non-PC version of English rule is that a subject of unknown sex takes the masculine. If you accept PC English and insist on using it then ultimately you will not be able to write or say anything that means anything. That is the aim of PC English, to befoul the language and render communication futile.
Thanks, did not know that rule. Now I can use his and when I get called out I can explain the rule. I am being sincere here, just so there is no doubt about my response. Even sent myself an email with your explanation. Makes perfect sense by the way, and makes writing less complicated for sure.