I Just Don't Understand

I'm very confused . . . we took Alexis to the pool this morning and she was not a fan. It took a long time to get her to even consider splashing and playing. She never reached a level that I would consider "enjoyment". Later, she played in one of the dancing fountains at Magic Kingdom. It was the kind of fountain where water jumps up in the air periodically. Chasing the water and getting hit with surprise bursts of water--considered very fun. She was laughing hysterically when she bent over and got nailed in the face. I just don't understand.