I work at a law firm. Many people were away for the holiday and it was clear weather was going to be bad on Sunday. But we did not expect anyone to cut their family time short to make it to work on Monday. I went into court for a partner who was stuck out of town. Did the judge say “ why didn’t he leave on Saturday instead? No of Course not. He said “ yeah weathers been terrible let’s reschedule for Friday”.
In real real life ( as opposed to the real life students are sometimes told about) most things are more flexible than schools often act like it is.