This book was published in 1993. In the last twenty years, the world of Artificial Intelligence has without doubt made advances that would have seemed unimaginable then, but that is not the point. The technological side of this story, like that of many of the best SF books (call them Speculative Fantasy rather than pure Science Fiction) is simply a prop on which the human story is based. And of course even the purists rarely, if ever, get their future science right.
I said "a human story" and it is a very human story, but it is also the story of a humanoid. For the question posed here is: when (not if) we can make computers, Artificial Intelligences, conscious and self-aware, will they be "people" in their own right? Will owning them be tantamount to slavery.
But let me be quite clear about this: Virtual Girl is not the story of a machine, it is the story of a girl who at one year old, has suddenly to become a young woman and take control of her own life, albeit life on the street. In many ways the ultimate outsider, for AI has been banned and she has been created illegally by an MIT drop-out, a loner who wants the perfect companion, she proves to be the most human person in the dystopian world of this book.
SF at its very best.