I think the baby care centers have pint size toilets available, but there is only 1 in each park and they are usually at the front of each park. I know when my toddler was an infant we needed to use the baby care centers frequently and the epcot 1 was such a hassle bc it was a really long walk if we were in world showcase and needed to get all the way back to the baby care center. I know Disney also supplies "family bathrooms" but I am not sure if they have pint size toilets in them or not. I am also guessing that you will be bringing your potty from home for the resort bc I know they don't have pint size toilets in the resorts. My toddler is going to be 3 this summer, so I know potty training is going to be happening sooner rather than later, lol, and I am worried about the same sort of problem when we visit next year in Disney, lol. Good luck on your trip!