To be fair to Harry, I don't think he is alone in not understanding life outside the Royal Family/upper class bubble
You're almost certainly right, @KatherineParr, and FWIW I don't imagine a lot of the others would cope very well outside it either
However having chosen to make such a huge life change it might have been wise for Harry to look into what it would involve a little more carefully instead of constantly blaming everyone else - except it's becoming clear he hasn't the wit