A lot of people with Asperger's really don't like to be hugged, kissed and touched and an 8 year old may not be able to communicate that.
How do you know she will be a "fairly normal" functioning adult and what do you mean by "fairly normal?" Many people with Asperger's are not able to be independent and some have to live in group homes.
My advice is that you first change your opinion about AS. It is not a disaster. For many people it can be a very positive thing, even for ones that do need assistance with survival. Stop feeling upset that she has AS and start trying to see the positive aspects of it that you can focus on. There is a good side and bad side to everything.
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The Rhymin' Red Rover, that's what they call me,
Too old for a sailin', too young fo' the sea;
Set sail fo' a sunset, to a land that is free,
I'm the Rhymin' Red Rover, and that's where I'll be.