Schools should provide quiet spaces for kids who don't want noise during lunch. The library should always be open during lunch hours. There should always be an outdoor space for those who want it (unless there is lightening - I assuming you know how to dress for any other weather).

Or we can go the opposite way: for kids who want to be loud during lunch there should be a place for them to do that. Wanting to be loud it too common to ignore, and it isn't like perfume/peanuts/... where we have to force a policy for a minority.