somewhat related to this is the fact that nobody fills out their profile.
i don't even know if i'm chatting to a male or female most times, let alone their age, cos their profile is not filled out.
i'm not suggesting that people be required to put their age but perhaps if they are under 18 (or 21) they could be required to have an icon indicating so.
then, as you know, by right clicking the person's name in chat, you can see their profile when they enter and at least know who the hell you're talking to.
it's not conducive to good communication when the age and gender of those you're communicating to are unknown.