At the Catholic school I went to a hundred years ago, no one was permitted to talk at lunch. Which means we ate our own lunches Then we packed up and went out to play for at least 30 minutes. In all weather except raining buckets.
some of my children went to Waldorf school where they went out in all weather. It was part of learning about nature.
Today in the school in our local town the children are not permitted recess if the temp and wind chill factor combine to be 15 degrees. NOT MINUS 15 degrees. Just 15 degrees. It hits that often in these northern climes.
The childrens' theory is that there are some teachers who dont want to stand outside and they lobbied to pass this ridiculous rule.
I went to Catholic school in the mid-60s. For the life of me, I can't remember any rule not to talk. But we DID go outside, no matter what the weather!
We also walked to school, no matter the weather.
Of course, there were no sex predators every other block....