Well...I don't usually comment on threads like this, mostly I just lurk, anyway. I know this is a fairly old post, too, but I'm fairly sure things have not improved.
I'm afraid the self-entitled, HOORAY FOR ME AND THE H*LL WITH YOU attitude is prevalent everywhere, not just WDW. (We just notice it more there because we are crammed in with so many other people at WDW.) Just this morning I read a PTR by a woman that breezily commented on how she will be buying the early-bird pre-boarding fee for Southwest Airlines for herself and her two children, aged 10 and 12, so that they will be guaranteed seats together, and also, "that way I can save a seat for my husband, whose employer won't pay for that".
So...she evidently believes her purchase of three early bird fares entitles her to four early bird fares. The saddest part is that she sees nothing whatsoever wrong with doing so.
I'm fighting the impulse to comment that, hey, you could always purchase the fare upgrade yourselves, and oh by the way, your children are watching you.
The irony: Recently, on a trip on SWA despite purchasing the early bird fare for herself and her children, my daughter and the children (aged 6 and 9) were separated on the flight--- because so many people were saving seats for those they were traveling with that did not want the added expense of the early bird fare. Two would purchase and save seats for an additional three, etc. Quite ridiculous and absurdly rude.
Our family finds WDW to be a lot of fun and the place of many happy memories--and also a bit of a trial. Because I was raised to respect the rules, authority, and other people-- and since I raised my children likewise, we find the behavior of many ppl to be shocking and depressing. We would never save seats (or curb space) for those not there. If they want to sit with us, or see the parade, show, etc., then make the time to get there early like everyone else that would like a decent view. Otherwise, stand in the back.
Its. Just. That. Simple.
The challenge, of course, is to not allow other ppl's bad behavior to effect you or your enjoyment or your vacation/commute/trip to the grocery store/gym/other public space. To do that it is necessary to ignore, ignore, ignore, and to not respond in kind. Praying is also helpful.
If not downright essential.