I have three children, my youngest is a 4 year old boy. He is a climber, and likes to figure out how things work. He has managed to get childproof bottles open, and how to climb up cabinets to get something he has had his eye on. He is not hyper at all, or even really disobedient, he just likes to climb and figure out how to solve problems. My husband would like a balcony room, but the idea terrifies me. I know he can figure out how to unlock doors, and I can see him climbing over the railing. I dont know if he would, but thats what I picture in my nightmares. I would rather not have a balcony. We have never cruised with children, and never with Disney. I know this is a ridiculous question, but how do they keep kids from falling over the railing on all the parts of the ship? I am sure you are laughing at me, but I've never done this before! I'm so paranoid!