Autumn:
My father is a paraplegic and when we visited Disney World in the fall, the rides that allowed him to stay in his chair were welcomed. Check out this
comprehensive list of attractions that will allow your son to remain in his chair. Don't be confused by the first classification on the list of attractions that allow ECVs and wheelchairs to roll on. It's directed, in my opinion, to ECVs. Look on down the list to the heading of attractions that require you to transfer to a wheelchair. These attractions do not allow ECVs to roll on so you must transfer to a wheelchair. But if you are riding in your own wheelchair, you can remain in it. As you can see, there are many more attractions that are available to roll on for your son when you include this section.
A few attractions of note: My dad had a blast at Magic Kingdom as we enjoyed the Jungle Cruise, It's a Small World, Winnie the Pooh and our favorite, Buzz Lightyear. At Buzz, you'll be escorted to a separate area to load as the cars remain moving. Although the list includes Spaceship Earth at Epcot, you'll be required to transfer from your chair, however, they have a special transfer bench to make it easier. Living with the Land was equally enjoyable and all of pavilions in World Showcase were accessible. Hollywood Studios' Toy Story Mania is a must-do with a separate loading area; it along with the Great Movie Ride allowed Dad to feel like any other guest. Lastly, Kilimanjaro Safaris at Animal Kingdom will allow you to wheel on as well as TriceraTops Spin, but let me warn you, TriceraTop Spin slings you around considerably and could be a problem if your son uses catheters.
If you have any more questions about mobility issues, feel free to come back and ask.
Wishing y'all a magical vacation!
Whitney