In fact, this phenomenon exists in today's society because of the existence of various formalism. Nutritional meals were originally prepared for kindergartens and primary school students. The basic consciousness is to supplement students' daily nutrition in this way, so this nutritious meal is at least worthy of the word nutrition. However, this is often not the case.
When I was young, our primary school used to provide nutritious meals. However, the school leaders didn't take nutritious meals as a big deal, just let the chef in my school canteen simply cook one or two terrible dishes and barely get by. I deeply remember that the nutritious meal at that time looked very nutritious, which made people lose their appetite at first sight and made it more difficult to swallow. Finally, many students in the class dumped the nutritious meals.
I think this blatant waste of food will happen when the slogan of saving food is advocated all over the country recently. I think this has also sounded the alarm for the whole society. This unnecessary waste is often because some school leaders have done some superficial work to cope with the work in order to cater to the above nutritious meal system. These superficial tasks seem to be done in place, but in fact only students who have experienced them personally will know whether they are good or not.