I agree with Nan. Don't totally rule out skipping. It has worked well for many of our kids. But it does lead me to ask another question: Does your DS have the opportunity to interact with kids older than he is? If so, do you see any differences in how he relates to the older children? Perhaps the difficulty you're seeing in your DS interacting with other kids is that the kids are his chronological age rather than closer to his mental age and he just has much less in common with his agemates.

She thought she could, so she did.