This also somewhat appears in the Orconomics book series (very enjoyable fantasy satire with some heart to it), where the elves in that universe are virtually immortal and don't die by aging. Instead they just slowly forget their previous lives if they live that long.

One of the main characters is an Elf who used to be an adventurer of great renown, but is a bit washed up and is constantly comparing themselves with the legends of what they used to be. Also applies that if you were an Elven prince or princess, eventually you age out and get moved lower socially to any newer born royalty.