Hi Pru,
I'm a gifted child that is now 24, and I personally experienced a lot of what you are describing in your child. If it interests you I can reply to this thread with some experiences.
Generally speaking, I think what she's experiencing is very normal. I completely remember this phase of my life. I'm an only child and so I was lucky that often times I would interact with my parents friends (40 yrs+) routinely, and felt very comfortable.
I suppose there are some warnings but I'll elaborate if you're interested, just let me know.
