My 14 yr old wanted to go to disney quest on his own, however we didnt let him. We did let him take his 5 yr old brother to the arcade at the hotel, and we let him run and get fast passes for us while we were at dinner or at other attractions. I also let him and his 11 yr old sister go off at disney quest while I was there trying to entertain the 5 yr old. If he had a friend w/him I probably would have let him go off even more, but there are soooo many people and it can be a bit overwhelming even for me. I also let him go off on his own at the waterpark, but I did start to worry after an hour of me not seeing him. He was fine and eventually did find me. I also let my 11 yr old go to the older kid section for about half an hour by herself, while I had the 5 yr old at the smaller kids section of Blizzard Beach. Just as I started to worry and go look for her, she came to me, so it worked out fine.
Tracy