This might sound really really silly.

I'm not really sure what the game of "Playing Tag" is all about. I have tried to observe the children in the village and so far I can see that the "It" isolates him/herself from the others after what seems like a game of running round the village in a train.

And then they go off and do their own thing..

And no... I haven't come across a game like that when I was a kid.