That's a good way of putting it.

[ He actually means it, too. He'll have to remember that metaphor if he ever ends up explaining the origin of games again.

He won't comment on whether or not she's still a child, but her next question certainly catches him off guard. Akechi blinks, suddenly entirely unsure of how he should answer. ]

Well... yes, they are. Sports are competitive games centered around physical activity. Seeing who can run faster, or swim a certain distance in the least amount of time. Some of them are played in teams, too.