Thanks for all the input and different experiences. When I took ds to orientation he was much smaller than the other kids and one of my concerns is that he might get bullied.
However I have seen him interact with older kids and he seems to make friends easily. His daycare teachers have also said he is able to sit still and listen. They did however say that sometimes he rushes through his work because he wants to play with the other kids.
It's such a tough decision. My instincts do say he is ready though.