Pretty sure working class people suppress "fancy words". A fella could get mistaken for a "fairy" or maybe even get a beatin'.

It's like how mothers used to chip in to enforce gender inequality their daughters suffered. It is a defeatist mindset, that is culturally enforced and learned from bitter lessons of the reality of power balance and dynamics in society.

edit:

like many here at my development stage (middleclass, degreed parents, etc) there was significant positive feedback for displaying cognitive abilities.

So it is not a luxury, it is a privilege.

And that raises the question of whether it is in fact required (as a sort of petite-bourgois-oblige) for those of us who are comfortable with "fancy words" to do the talking for the otherwise encumbered oppressed?