Thought: Strange! As one gets older, instead of growing, they start shirking.

One starts restraining the present, and the future possibilities; starts counting the age backwards. Strange, as in youth, all one has ever asked for is to grow old and explore the world.

I do understand the biological reason now - https://www.youtube.com/playlist?list=PL44ABC9278E2EE706 (i think video #17)