That's a very interesting perspective! Any particular reads inspired it?

Though I think "imminent mortality" is not the only thing at the foundation of age-driven conservatism. I think there is also tendency to follow paths of least resistance (energy conservatism): learning/discovering new ways of doing things comes with more friction (if one does not enjoy the learning/wandering process).

EDIT: I just realized that the two points are really intertwined. Time conservatism is closely related to energy conservatism and cannot be regarded in isolation. (forgive the awkward terms)