My parents let my sister and me do that when we were 13 and 11 respectively. I do think that there is a difference in kids being in the park with another kid versus being in the park by themselves and would probably allow my child to go around with a friend or cousin before I'd let her roam free. I interpret Disney's rule to mean that a child 7 and older can ride alone, but isn't supposed to really be roaming the park by themselves until they are 14 (if I have that wrong, please let me know). Because of this, I wouldn't let my daughter walk around the parks alone unless she was 14. And, as another poster said, it would completely depend on the maturity of the child. My daughter's babysitter is 13 about to be 14. If she were my daughter, I'd have no problem with her going around the parks on her own. I have to remind myself that she is only 13 now. My nephew, on the other hand, is the same age and there's no way I'd let him go around on his own were he my son. If my daughter is more like her babysitter, 14 for sure. More like my nephew? Then we are looking at 15 or older.