Do kids still play tag? Adults do, and it's an organized sport.
An excerpt from Dead Beats Panel:
A group known as World Chase Tag has created a World Tag Championship, which combines the simple and straightforward game of tag with parkour. Two players enter a playground like arena, with one player trying to avoid their opponent who is “it” for 20 seconds. The players will use the obstacles to jump, run over, slide under, and generally use to their advantage one way or another.
It’s a surprisingly intense sport. Anyone could try it, but imagine attempting to put your hands on a person that can clear a chest-high hurdle with barely a stumble, then grabbing a bar and swinging several feet ahead. It would be maddening, and a challenge for all but the fittest – and the most agile.