First, it is understandable that this employee is only in his twenties and doesn't want others to call him aunt.
In a canteen of Shenyang University, there is an employee who is only in his twenties. She is usually armed to the teeth, and everyone can't tell the exact age, so she is called aunt. This made her feel a little embarrassed. After all, she is still very young. I hope my classmates will stop calling me aunt, so I wrote a notice: I am not old, and you are not young. Don't call me aunt. After seeing this notice, the students changed their minds and called their employees' sisters. As women, they are very concerned about their age, especially young women, and don't want others to call them aunts. If they feel this way, they will get old. The staff in this canteen are really young, and college students are about 20 years old. It is more appropriate to call them sisters.
Second, put up a notice to remind everyone that it is relatively novel and indirectly advertise this booth.
Although this notice is only a piece of a4 paper, it has successfully attracted the attention of the students. I want to see the true face of the employees in this canteen, so I came to this stall to cook. This marketing method is also very successful. It can not only make students change their minds, but also advertise their own booths, which really kills two birds with one stone. It seems that the elder sister in this canteen is still very clever, praising her wisdom.
Third, I think aunt is just a title, so don't care too much.
I have a different view on this matter. I don't think the staff in this canteen need to care too much about what others call her. Out of respect for her, people call her aunt. Because the canteen staff usually wear hats and masks for everyone's health, others can't see her true face and will call her aunt. Although it has been changed now, maybe after a while, people will still have such a name, so we should treat it with normality.