1. Married daughters can't go back to their parents' graves to worship their ancestors, because the traditional patriarchal thinking thinks that daughters are not their own homes and are influenced by the old concept of "men are superior to women".
2. People in her family don't want her daughter to go back to her family to visit the grave, for fear that others will say that there is no one in her family.
3. Only the names of sons and daughters-in-law can be engraved on ancestors' tombstones, and girls' names are generally not engraved on ancestors' tombstones.
4. In some places in Tomb-Sweeping Day, a married daughter can't go to the grave when she goes back to her parents' home, but a married daughter can only go to her husband's family's grave, because in Tomb-Sweeping Day, a married daughter will bring good luck and make the family fall when it's raining.
5. In some places in Tomb-Sweeping Day, it is ok for married daughters to go back to their parents' graves, but they can't make their own fires when they go back to their parents' graves. She has to go to her parents' brother's wife's house to get it. In a word, these taboos are influenced by the traditional preference for sons over daughters, but now the custom that Tomb-Sweeping Day can't go back to her parents' home is gradually changing. In some places, daughters take their sons-in-law back to their parents' graves.