['I am not sure my son will do well in kindergarten', 'What causes you to think that way?', 'He is not used to being around other kids. He might be too afraid', "*nods, understanding*  I remember that feeling with my oldest.  She hadn't been around too many other people besides her dad, me, and a cousin or two.  There was an open house at the school she was going to and all of us went to meet her teacher and get a feel for her classroom.  Is there something similar at your son's school?", "We did that and he didn't want to let my leg go. We are going to have a rough start. I already know", "Hmmm...I think once he gets a feel for things and engages in activities and just busies himself he might be okay with it.  Just reassure him that you'll be back at the end of the day, and that you can do something special at home when he's done with school.", "That's sounds like a good plan"]
Just reassure him a lot because if he knows you're there for him at the very start of his school career, everything after this will be a walk in the park.  :)
I am not sure my son is going to do well in kindergaren