I usually leave it vague as to the exact age of my character(s). It's a habit I got into after role-playing as a blood elf for years back in WoW. MMO's typically have rather confusing and often conflicting timeline issues to deal with and so I only really touch upon such things when strictly necessary. Simply describing a character as 'young', 'middle aged' or 'elderly' is enough for me. My characters do grow and age over time, though - but it happens in a way that combines role-play based progression with what is happening in the canon lore.
