Why do Koreans eat kimchi all the time?

Could you elaborate on why Koreans seem to have a constant affinity for kimchi? Is it a cultural tradition that has been passed down through generations? Does it play a significant role in their diet, offering nutritional benefits or simply a unique flavor profile? Is there a historical context that explains its prevalence in Korean cuisine? Lastly, are there any modern factors, such as convenience or affordability, that contribute to its widespread consumption?