When my son was at UT-Austin in 2010, he headed out to class one morning. Austin had gotten a quarter of an inch of snow (literally). He couldn’t figure out why campus was a ghost town. He finally found someone to ask, and they looked at him like he was nuts - “Classes were canceled, of course!” Ha, for a kid who had to walk half a mile to the bus stop through ice and snow for 13 winters in Maine, he was baffled.
Schools have a lot of issues to consider when deciding whether to close. I think parents shouldn’t second-guess them. Up here, it’s common knowledge that businesses, schools, doctors’ offices, etc. give you grace if it’s not safe to drive. If a kid misses class, the professor will cut him/her slack.