Interesting article but mostly wrong IMHO. For starters, "the glue that held together our discourse and communication for centuries - the rules of respect, kindness, propriety". I can think of several groups of people who would absolutely disagree with that statement, for example African Americans, women, etc. whose voices were utterly suppressed by such so called respectful, kind discourse. Kids are moving towards inclusion, not exclusion, and their communication reflects that. You may like excluding people. I personally don't, even kids.
I'd also say the author himself has a sense of entitlement, though of course he calls it deserved. Kings thought they were entitled to rule as they saw fit, including enslaving others. Professors of old (and new I'm sure) thought they had some corner on the market of ideas. Some did, most did not. Ask patent clerk Einstein. There's also the general culture to blame though...at least since the 80's it's been gimme gimme gimme, by the adults! Of course their kids will reflect that. The current cult of personality doesn't help. So in that sense yes I agree there's a definite sense of entitlement among kids. But look who their example was. I think even this pendulum is swinging back a bit as kids see in the current financial crisis that maybe there's something more to life than "stuff". So sure a professor or veteran may be more likely to provide good info, but that doesn't mean s/he's automatically right. Some young punk may have the answer too.
I guess it boils down to perspective. I find very little good in the "good old days" and would never want to go back...and that's coming from a white guy who's pretty well off. The direction kids are heading, inclusion, openness, constant communication with each other, is exactly the direction we need to head, as fast as possible, before some "old society US versus THEM" types blow the whole thing up.