I grabbed a pair for my two year old on our first day (the pair I ordered at home were too big but came too late to exchange). She wore them on our first park day and I kept a really close eye on her feet, but that first day we had zero issues. There were no spots they rubbed and she clearly found them comfy. We brought them down to slip after the pool and on the walk back to the room they gave her a blister and rubbed in a few other spots, so we didn't put them on her again.Has anyone worn these at Disney? Thinking of investing in a cute pair of Mickey ones... but want to be sure they'll be comfy enough for walking all day in the parks. (Note: I will be bring sneakers, too)