Working in a school system, I think we have delays too often due to cold. However, those days when we had the wind chill warnings and it was 20 below with the wind chill, school needed delayed or shut down. No way kids should walk in that. And yes, we still have a lot of walkers. The harsh reality is, if we don't delay or cancel and a kid gets frostbite, the school will get sued. Some of those days the news reported frostbite could happen in minutes. So, it is act with caution and keep the best interest of the kids in mind to protect everyone involved. If a bus goes off the road due to a snow covered road, there's another lawsuit. You know it's true in today's world. Also, terrain and the size of a district has a lot to do with cancellations. Back in our day, we lived very close to schools. Nowadays with so many consolidations, districts are widely spread out and cover many more miles in buses. I bet the majority of the people on here walked to elementary school when they were kids. My nephew rides over an hour to get to elementary school now in his district. The hills in my area are very steep and the backroads, many times, are untouched for quite sometime. Ask some of the guys who were at my place for the rabbit hunt this year.
Just some things to think about when we want to criticize school cancellations.