Oh, I'm sorry Billy, cause I thought most of the "terms" used here were more metaphorical (see my above post).
Metaphor - A figure of speech in which a term or phrase is applied to something to which it is not literally applicable in order to suggest a resemblance, as in "Billy is a dick hole".
Billy, we know you're a human, but "dick hole" is the metaphor.
Yes, Kato is literally young, but the point is he will be done, old, washed up, yesterday's news, like (key word) an old man. So go ahead and laugh now... it was funny and now that it's been spelled out for you you might find the humor in it or at least be able to come up with a better rebuttable (that means "come back").
Maybe in simpler terms... Billy young, joke him old. Got it?
Your post on the other hand wasn't even funny. Did it make anyone else laugh? No wit and about as interesting as ,"My dad has a gun..."
Neat Billy. Thanks for pointing out the known... Kato is young. Nice work.