This is probably a good place to put this anecdote:
Today, I was at Home Depot and stumbled over a little girl (between 3-6yrs old) who was obviously lost, with no other adult in sight. I thought about it for one second, and walked away. Wasn't going anywhere near that situation.
If she was going to get helped, it would need to be a female.
I even thought about informing a store clerk or something, but I might get accused just for being a male in the same general area as an unsupervised child.