Originally posted by HappyMommy2
I don't remember seeing any kid-size toilets in the parks, but they do have quite a few "family" restrooms. We used those whenever we could with our DS 3.5 and DS 1 on our recent trip. There is plenty of room in there (can fit a stroller, etc.), and since you are the only people in there maybe your DS would find it less intimidating than the stalls.
I just wanted to mention that the big separate bethrooms are "Companion Restrooms" at WDW and they are not on the maps. At MK, they are the only bathrooms that someone who needs to bring a wheelchair into the stall (or needs to bring a helper in with them) can use, so they are listed in the Guidebooks for Guests with Disabilities, but not elsewhere. The handicapped bathroom stalls at MK (and many at Epcot) are not big enough to bring a wheelchair in. MGM and AK are much better.
I'm not saying they can only be used by someone who hasa disability, just saying keep in mind that they are the only stalls in the whole park that some people are able to use.
I've been told that there are small child size toilets at the baby care centers. I'm pretty sure they would not let you bring your potty chair there to leave it (plus there is only one Baby Care Center in each park, so chances of getting there in time would not be too good). We've been to WDW many times and I've never seen any small toilets anywhere else.
Stickers for the self flush toilets are a great idea. Some of them are very sensitive to movement (especially by someone trying to keep balance). My DD's record is 12 flushes (she has cerebral palsy and is tall enough and unsteady enough to make it trigger on a lot of toilets). Someone suggested the inexpensive dots with easy off adhesive and someone else used a pad of post it notes.
We actually had one of those folding toilet seats for DD when she was smaller and it worked very well, even for a pretty squirmy kid. Another thing someone mentioned worked well for their son was floating targets made for toilet training. They are some sort of tissue paper stuff and the idea is to hit them and sink them. I have no idea where they got them, maybe Toys R Us, but the poster said they did get her son to use the toilet at WDW.