AD&D used to have some rules for aging, something like this:
Young Adult: Subtract 1 point of wisdom, add 1 point of constitution.
Mature: Add 1 point of strength, add 1 point of wisdom.
Middle Aged: Subtract 1 point (or half exceptional rating) of strength and
1 point of constitution; add 1 point of intelligence and 1
point of wisdom.
Old: Subtract 2 points of strength, 2 points of dexterity, and 1
point of constitution; add 1 point of wisdom.
Venerable: Subtract 1 point of strength, 1 point of dexterity, and 1 point
of constitution; add 1 point of intelligence and 1 point of
wisdom.
For a Half-Elf, the age group onsets were 24, 41, 101, 176, & 251. That does kind of work out for Jaheira, actually. Back to the armor issue, I always imagined druids using the hoplite form, like the ancient Greeks. You can even buy some on Amazon today ... how appropriate.
