An extravertedness bias in underclass culture is the main reason people why people don't get into coding, which is historically more something for introverts and a "nerd thing". It's still in peoples minds, nobody in High School wants to be like Steve Urkel, it's a vulnerabilty in certain circles.

This can only be changed by changing the image of coders within mainstream pop culture, which in turn is mainly influenced by lower class culture, especially Hip-Hop culture in the last decades.