I grew up in southeastern New England. In grade school, we once went 7 straight years without a snow day. It was not for lack of snow. Unless it was a true blizzard or an ice storm, you got yourself to school. Didn't matter if it was still snowing in the morning, or the side roads hadn't yet been plowed. When the default decision is that school will be open, the excuses ("the roads haven't been plowed," "there is ice at the bus stop") melt away.