Why are some traditional foods no longer popular in China?

I think the main reason is the poor living conditions of people now. It has been greatly improved than before. Everyone is not pursuing all kinds of food. Especially some traditional foods, such as moon cakes and rice cakes. In the past, you may only eat on certain festivals, but now you can buy at any time. On the other hand, there are many traditional foods. The heat is higher. Low-carbon life is very popular now. Everyone will pay attention to their health. So it will control the intake of sugar. In other words, some traditional high-sugar foods are basically out of fashion now. At least not like before.