Do carry on being blinded by your stereotypical judgements. If these people ARE just fresh faced middle class kids, that could just be something to do with the fact that, contrary to their propaganda, this government has done its level best to pull up the ladder and make it impossible for anyone from a background in which money is not plentiful to get into medical school and qualify as a doctor. And that situation's only going to get worse, particularly as more and more young professionals, faced with eroding salaries and support from employers, require private means (or the bank of mum and dad) to survive.
And it'll be Justin or one of his friends who, in between jolly japes, is putting your face back together next time you step on your own dick and faceplant the pavement. I suspect you won't be sneering at their fresh-facedness or middle class ways then.