Why is it advisable to wear long sleeves when students work in a chemistry lab? to provide warmth near the lab refrigerator to protect the arms from lab chemicals to minimize burns from hot water at the lab sink to prevent burns when using a Bunsen burner

It is advisable to wear long sleeve when when a student is working in a chemistry lab so that to protect arms from lab chemicals. when someone enter the chemistry lab to wort or to study should be well prepared with appropriate gears and security measure to avoid injury.