Here ifs the serious flaw in your argument:
I am not saying stop kids who do eat peanuts from coming to school or stop kids who come to school from eating peanuts. What I am saying is Dont bring the peanuts to school. Frankly its a very sad statement that people would need a board policy to do this rather than simple human courtesy but thats another story.
To make your analogy correct we would have to have a school baord policy that says ‘if your kids has an infectious agent, dont send them to school’. E.G. even for the 5% whos immunizations have failed if they get Chickpox or Whooping cough they cant come to school.
Well such policies exist at many day cares and school. If A kid has chicken pox they cant come in.
And children are often carriers of a disease before it manifests itself in physical symptoms. There is the “serious flaw” in your argument.