13yo DS came home from school really upset on Tuesday. He is a sensitive boy who enjoys HIS chosen sports - which don't happen to include football. So, PE lesson, football hits his hand. So called "friend" laughs at him and encourages the rest of the class to do the same, telling him that he's rubbish etc. School policy always seems to be that "everyone is friends" regardless of likes and dislikes. So, AIBU to tell DS that he doesn't have to be friends with this boy, and that he can refuse to associate with him if he wants to. The behaviour seems pretty standard for this boy, he's done similar things to other people before but the "school" always put pressure on them to let it go, without even insisting on an apology. DS is worried that if he stands his ground he will get into trouble. He doesn't want me to say anything to his tutor/ PE teacher.