Hello!
Everyone has their own culture, so I am not sure about whether this answer would apply to everyone, since each culture would have a different example/answer.
Here is a possible example that you could use to form your own answer though:
In Japanese culture, food - especially traditional food, serves as a way to preserve and keep the culture and tradition. It can preserve and keep culture and tradition, as well as allow for it to be passed down from each generation (eg: through teaching each other how to cook a traditional dish, etc).
Hope this helps! Best of luck!