This brings up a few very valid questions.
*What are you going to do about the "adult" profiles some residents have on Second Life (Nudity, adult language & situations, advertising for adult business, etc.) Are you planning on safeguarding them from reading adult profiles? Are you going to censor & force residents to change their profiles? (Which is a bad move for those who own adult businesses or work in the adult industry & use their profiles to pass on information, etc.)
*What are you going to do to protect us, the adults, of Second Life? I agree with the other comments on knowing the age of someone. What are you going to do to protect us? Make their profiles like many licenses in the United States. Completely different looking to be able to tell when one is on a teen account & one is on an adult account?
*Have you been to many of the G rated areas of Second Life recently? There isn't a day that goes by where I don't see a resident in lack of clothing or being led around by a master wearing slave silks & a leash. (I am NOT starting a discussion on lifestyles, etc. on SL. I'm just stating what many of us see on a daily bases in a G area to point out that just because a place is G does not mean that all residents act like it is.)
I came to SL almost four years ago for the opportunity to express myself, be creative, & be with adults. Keyword: Adults. I feel extremely uncomfortable to be pushed into a place where I will have to interact with teens in G rated areas (To stop an argument before it starts I like to go to sl parks. I like many shops that are in G areas. I write on various SL things & go everywhere for it. Not going to a G area is not an option nor should it ever be). As a parent I wouldn't want my kid befriending adults in an open virtual world. To me it seems like a very unwise & unsafe move.