It is very common in modern society for mother's name and daughter's name to have the same character. This is usually because some families choose to use one word from each parent's name for their children's names to show respect and remembrance of the parents. This practice does not violate the country's naming regulations, and you can also register your household registration with the Public Security Bureau normally.
In ancient times, this practice may have been considered disrespectful to the elders, but in modern society, this concept has gradually faded. Regardless, the decision to name is usually made by the family themselves, and the choice can be based on personal preference and cultural background.