Ds 4 and for some reason really does not want to go to school ( not even sure where that has come from). So first taster session today and won't even go in the classroom! He goes to nursery 2 days a week fine. He's not a shy boy and has plenty of friends at nursery ( some of which were there. Anyone offer any reassurance?! Dreading taking him next week for next session where I have to leave him ...