You know what - since my kids are adults now and might not want me to talk about them I will tell you about a relative that at 17 had already completed 2 years of college.
Later, though, I heard through the grapevine that her mother wished she had held her back because of the social interaction.
My opinion is that maturity in socialization should be one of the considerations in acceleration.
Going back even further, my mother went from 7th grade to high school and even then excelled on all levels - so I guess it has to be a weighted call - pros and cons.
