Kids probably adjust better than most adults even the young ones. It’s parents and grandparents who lose patience more so. Only saw a few kids who were out of control but I saw many dad’s and mom’s ready to commit Herikari under a hot Florida sun.Been there several times and you need to make a plan for what you kids can handle. When our kids were younger we would do a park and then go back to the room and hit the pool and then do another park in the afternoon or evening
Wilderness lodge is awesome if you are going to spend most of your time at Magic Kingdom. If you don’t mind the bus I would suggest the Yacht or Beach club. It has an awesome pool and is a walk to Epcot and Hollywood studios. We liked Epcot for food but Disney springs is also very good.