My DS class (Year 2) will be doing an overnight visit to a local historical home. The place is close enough to do it as a day visit but the school has chosen to make it an overnight trip. Neither my husband nor myself are comfortable with the idea of sending off our 6yo on this overnight trip. We don't even know who, besides the teacher, will be chaperoning the children
. As far as we know this trip is not compulsory. How do we say "no" without having an argument with the school? Ideas?