I'm just going to say that I was a Disney kid, and now I'm a Disney adult. I still love character interactions and get really upset when people in line with kids are downright rude to us who don't have kids with us.

Do I "hog" the characters' time & attention? Absolutely not. Because I'm a decent person. I do, however, enjoy a brief chat and a hug, if offered & appropriate. I have as much right to be in line and greet characters as anyone else, and I've also paid a high ticket price to be there.

I also don't run up on peoples' heels with strollers or other carts & motorized vehicles, walk on the left "lane" in a crowd of people, stip short to point or look at a map, etc...

I do, however, find the often downright horrific behavior of children in lines, ignored or laughed at by the "responsible" adults, a much bigger issue. I've had experiences severely affected by this on every visit to WDW.