My son was just 4 years old. It was his first year in preschool and the very first week. I got a phone message from a mom inviting him over to play with her son. “This is wonderful!” I thought. “He is being sought out and may already have a friend at school.” I immediately shared the good news with him and got back an equally immediate, “I don’t want to go.” Yikes! I thought, “He just does not…