The OP has a valid opinion. Well, I did see the OPs point until post #38; the OP had me until she pulled it into most things. Without a child, there is no way I would wait in line for Dumbo. I cant stand that line. It is the slowest moving line in all of WDW, I swear. And, I dont find the ride that wonderful. Not even as a 4yo was I ever thrilled with Dumbo. I was always happy to skip it, but my sister had to go on it. Now, if you took that position on Peter Pan, forget it. That one is actually interesting, not just a midway ride, and is worth long waits.
However, unlike the OP, I didnt think adults should be banned, by Disney or self-imposed. If they want to sit through that line, all the power to them. My kids understand that if they want to go on Dumbo, they have to wait, a long time. We usually hit it late at night for that reason. My kids hate waiting in line, too, and while they like the ride, it isnt a have-to-do-NOW ride. Maybe they should get a fast pass system for Dumbo.
Now, once you get to character meals, sorry. While as adults only, we wont monopolize the characters or get autographs, we do like some of those meals; DH cant go to WDW without going to LTT. And beyond CRT for breakfast, they arent that hard to get into. Seriously. Right now we have the problem that we would like to try Akerush in Norway, but my boys dont want to dine with the princesses. DH and I would do that though if we didnt have our boys with us.
As far as the kids wanting to go back year after year, yes they do, in our family. But that isnt why we go. My kids dont pick the vacations; its my money and my time, so Ill pick where we go. Now, Ill make sure they have a good time wherever we go because I dont want to hear it, but I decide. DH and I will still be going long after the kids; were talking about how to get there without our kids now! We see tons of adults there without kids.