Please keep in mind that the answer to this question is likely to be different from person to person and each child with Autism is different.
With that said, I have a big discussion going on at our Facebook page about this very topic. at the time of writing, there have been almost 100 people share their thoughts. Below there is a link to the actual thread. You can leave your comment there or in the comments below.
Whichever you prefer is fine with me… :-)