All Walks of Life 

Used by middle/upper class white folk to refer to a group of people outside of their social and economic status. Not necessarily a derogatory phrase, but often leveraged to invoke politeness or intentional ambiguity around the individuals to which they are referring.

Me: "What kind of people typically buy the Cadillac Escalade."
Cadillac Salesperson: "We get customers from all walks of life."

All Walks of Life by narcszm November 28, 2011