It should be a tradition in Guangdong. They think that ginger with pig's feet can remove moisture, chill and nourish, so generally in Guangdong, when a wife gives birth to a child, she will eat ginger with pig's feet. Basically, she will cook ginger with pig's feet every day, and in winter, she will often cook ginger with pig's feet at home. My parents-in-law are Cantonese, so I can eat ginger with pig's feet every winter when I go to their home. At first, I didn't get used to it, but later I found it quite delicious.