Most come from homes where the main breadwinner was employed in a white-collar job . Although journalism students are now more likely to be female, women journalists remain underrepresented in senior management roles in media organisations. The problem with these demographics is that journalists, as the gatekeepers to news and information, bring their own biases and prejudices with them to news rooms. Things that don't interest journalists tend not to be published. So a young, white, male, highly educated journalist is unlikely to have the depth of experiences needed to represent other segments of society.
News is therefore skewed to the white, male left-leaning perspective.
But that is changing, slowly. Now we see more women journalists although still not in senior management positions, and more indigenous journalists and journalists from other ethnic groups. Put simply - not much. Bulletin Poll found journalists were ranked just above used-car sales people on credibility. Firstly, journalists' work goes on in the public domain so the excesses are obvious.