You might want to think twice about pulling your kids out of school for a family vacation. Educators are strongly discouraging it, citing class time that's hard to make up and the burden placed on teachers asked for makeup work. >>
I'm glad to see some reporting on the biological effects on individuals especially students in school. There is substantial evidence of serious harm from radiation emanating from routers and other devices; business appears only interested in marketing these devices for schools but has been negligent as far as safety or even educational value.
Currently, there is a ballot initiative (current petition 15-33) to create an expert commission to evaluate and address health and safety risks--this needs support to move forward (see www.meetup.com/healove). The site had additional materials available to help address the issue.