Well, while I understand the view of not wanting to track age because of the character being ludicrously old, that arguement actually works against itself too, since it would be hard to explain how a character who is played over 200+ years of in-game time somehow managed to affect world-changes and the history of the world's events that show on the timeline centuries apart (except in the case of a longer lived character race such as an Elf, of course).
A simpler way of putting it, I guess, is that it seems to me that character ages are tracked indirectly already simply by having a steady passage of time in the world, and how they make their marks on the world through world-changing quests and events.
As I stated before, I'm not out to force any characters into retirement, but I would like to be able to have a better idea of their respective ages for the purposes of role-playing things like having a respect for elders, or taunting youngsters, etc. Sure, I could dig up original character submissions to figure out a characters approximate age myself, but that takes a lot of work.
Anyhow, I'm still very glad to hear that this idea isn't being shut out completely, but may, however remotely, have a tiny chance of getting implemented.