Why would I tell her that I don’t have any dignity?

This depends on how her younger siblings talk to you. It also depends on how old her younger siblings are. If her younger siblings are still kids and not very sensible, sometimes they just talk casually. Even if you say something wrong, don't worry about it. Children's words are unbridled. Maybe it's because the child likes you that he dares to say anything to you. If her younger brothers and sisters are adults and don't have the basic respect for you, in addition to their family upbringing, they may also be dissatisfied with you in some respects. You should pay attention to it in the future. However, you still need to see what was said to you. It is possible that the speaker was making an unintentional joke and you took it seriously. As for majesty, it is not always a bad thing if no one is afraid of you. There is a saying that you are not majestic but majestic. This is often related to the person's character, rest, work style and many other aspects. When interacting with relatives and friends, you do not want them to be afraid of you. , it is better to say that you are dignified, it is enough to talk together and the atmosphere is pleasant.