Well for me---I have arthritis in both ankles so if I wear most shoes by the end of the day I can't stand the pain. I have over the years discovered a couple of secrets that allow me to go pain free

! The shoes I wear are
CROCS. I was very against wearing crocs because to me they were so ugly. Well on one of my trips my sister told me just take them in case. So the first day there my dh and I were gone from morning to late night and by the time we got back to the room I could not stand the pain. So the next day I decided I didn't care what the shoes looked like I would try them. When we got back to the room the second night it dawned on me that feet did NOT hurt. I have worn them ever since. I don't even take other shoes with me at all anymore since I found a pair of black crocs i wear when we dress up a little too.
Also don't ever take new shoes.
Also about 2-3 months before the trip start walking around your neighborhood. This helps with keeping up.
I love taking my grandkids to disney too. Enjoy!