Growing up does not mean one needs to grow old.
Cleese, he’s grown old. He’s the exact wanker he mocked 50y ago on BBC.
Idle? He’s grown up. He has the awareness and cogency to recognize that he should be the target of appropriate mockery.
And he laughs at himself.
I forget who wrote, “Life’s a laugh and death’s the joke, it’s true. You’ll see it’s all a show. Keep’em laughing as you go. Just remember that the last laugh is on you,” but Idle really gets it. ;)
[Hi! Editor in my head here. Also a long time fan of Monty Python because British comedy is one of the reasons I survived my teenage years, and that’s no exaggeration. The smiley face at the end should’ve been sufficient to indicate that of course I know The Last Cool Python™ who sang this while being absolutely hammered on screen, wrote this song which has so much insight for such a playful, seemingly throwaway piece. -ed.]