It has a big effect on happiness.
Answer:
They changed the laws of segragation coming to their senses that the segragation of childrens public schools was unconstitutional and this allowed african american children to go to the same school as white children
Explanation:
:)
I believe the answer is: providing an additional choice for students on restricted diets.
Vegetarian menu tend to provide an option for various source of vitamin and minerals that might not exist on a typical high school lunch menu. It also might help the students with higher bmi index and higher cholesterol level who need to restrict their food intake before putting themselves on health risks.