text: At home you are more relaxed and in a more familiar environment than school. The chairs at school may often be uncomfortable, you might not have the best lunch selection if you are a student who buys, and there could also be more distractions such as your friends. You could argue that it's important to put yourself in uncomfortable situations but at least when you are an adult and more independent you will have the luxury of picking what you eat for lunch or even bringing in your own chair. People work more efficiently when they are in a place that feels more normal to them.