There is no inherent reason why kids should not be in school on Fridays. However, some argue that a four-day school week could have certain benefits for students and teachers alike. Here are a few reasons that have been cited:

Improved student attendance: By having a three-day weekend every week, students may be more likely to come to school on the four days that they are there, reducing absenteeism rates.
Increased teacher morale: A shorter workweek could improve teacher job satisfaction, leading to better retention rates and potentially more effective teaching.
Cost savings: By closing school one day a week, schools may be able to save money on transportation, utilities, and other expenses.