I might be surprised, but I doubt they allow peanut butter anywhere near the school these days. Think riot gear and paddy wagons.
Children at our area school bring peanut butter regularly. I was hesitant to send my children to school with homemade nutter butter cookies. But they assured me that it was ok. So we sent the cookies. There was no problem. That might not always be the case. I do know of a few children who have peanut allergies in the school. We haven’t had any in our children’s classes. Yet.
I took chocolate cupcakes to school for my son’s birthday. I had a child tell me he couldn’t eat any because he is allergic to chocolate. Last year, there was a boy who is allergic to strawberries in my daughter’s class. And yet, he brought blue Bell strawberry ice cream for the banana split party. I asked him about his allergy, and he grinned and said, “I’m not that allergic!”