When we come to WDW my children each have their own list of must-see things to do. My youngest even has her own must-not-see list. Disney's child swapping policy is so easy to use; they even offer child friendly attractions and "distractions" around every corner to see with them while waiting. Another bonus you'll find when you child swap is that your other child, the one that wants to ride, gets to double up on the fun and ride twice with minimal wait on that second ride!
Before trips, we show our kids youtube footage of the new-to-them attractions they would probably enjoy so they can see for themselves what they are like. They decide whether they want to experience them before we come to WDW. To them WDW is a giant buffet, where they are free to pick and choose the parts they want to see. Showing them the footage in advance is all of the gentle nudging I am willing to do to my kids when it comes to what they will see at Disney. I really want them to learn to listen to that little voice inside of them that's there to guide their decision making. My kids always have a great time at WDW, no matter what they skip, because they don't think they are missing out on anything anyway.
Disney is so real to them I think if I pushed them into something that ended up scaring them, to help them to feel better, I would then have to tell them it wasn't real. I am not ready to spoil this (my own) magic because I love that Disney is so real to them and I don't want that part to end.
This approach seems to be working for my family as every trip is different because they always decide to include seeing more things. I focus on what we do see on a trip and then later we start looking forward to what we might see on our next trip. Waiting to do things works fine for us, for example, I know my youngest would have loved Soarin' a couple of trips ago when she was finally tall enough. She didn't want to do it then so we baby swapped and she spent time over at the Imagination pavilion. A couple of months ago on another trip she decided she wanted to try Soarin' for the first time, and of course, she loved it! She was so proud of herself for finally deciding to try it. While I am sure she would have loved it a couple of trips ago, after lots of "nudging", I think she gained more by getting to decide when she was ready to experience it. I'm going to continue letting my kids discover Disney at their own pace. We all know Disney is for everyone; my kids also know that not all of Disney is for them, yet, and that is OK with me.