Why do you send lanterns to your nephew every New Year until 13 years old?

Ancient Guanzhong Folk Custom —— Children's 12-year-old Lantern Festival

Speaking of taillights, it is estimated that most Shaanxi people don't know. Complete lighting is also called complete lighting. Lighting lamps is an ancient and unique traditional folk custom in Guanzhong area. When a child reaches the age of 12, no matter rich or poor, a grand ceremony of arranging lights will be held at home, which indicates that the child's childhood has entered adolescence. Before that, every year from the birth of children, their grandmother's family lit lanterns for them before the fifteenth day of the first month of the Spring Festival, which can bear this honor. It must belong to my uncle's house. Of course, the more uncles there are, the more lights there are. My uncle will send the lights to the child 12 years old, and there must be no lights in the middle. When the children reach the age of 12, the children's families will hold a grand ceremony to thank their uncles, and the main family will also invite relatives and friends to attend the ceremony. Of course, my uncle's house must be the most important and essential invitation object. Children's families will attach great importance to it, and my uncle will give children lanterns for the last year according to local customs. Because children are older, lanterns are generally not given. Most people will give them flashlights, desk lamps and the like, which are more practical. Nowadays, most people will give their children another bike or a computer, and their families will also give gifts to their uncles according to local customs to express their gratitude. After the lantern ceremony, uncle's task of sending lanterns will be successfully completed before retirement. It stops here after the lantern is delivered, so it is called "Lantern Festival". In the past, only children and the main relatives of grandparents and uncles came to participate in the Lantern Festival, but now it has evolved into an open social activity. Colleagues, friends, classmates and acquaintances can't leave without notice. Of course, friends who can attend the ceremony cannot come empty-handed. They need to send a gift to express their mind.

I want to make a two-part allegorical saying: My nephew plays lanterns-according to my uncle's background, it may be related to this custom.