The trouble is that some people are still stuck in a world where the bosses and proper professional people came from private school, the lower level professional people and the managerial class went to grammar school, the skilled workers went to technical colleges and everyone else- the labouring classes went to secondary moderns. Well, that was how it was supposed to work. But society isn't like that any more.
You don't think it is still like that !
You could characterize today as such
Public School :Judges, FTSE Bosses, City Traders , 'Pop Stars' Media Personalities Reality TV stars Made in Chelsea basically , or basically the majority of people or families making all the money.
Private school /Grammar or Affluent Comps/Moderns : Managers of Small Businesses or owners and Operators of small family Firms (many working for below 'minimum wage' to keep going)
Inner City/Deprived Comps/Moderns : Zero Hours Contract jobs wages made up by Tax Handouts odd sportsmen it !