First of all, this is actually a polite gesture. Although, in our opinion, walking slowly is actually some pleasantries that most people will say, in fact, some people are not very polite and do not understand these necessary pleasantries, so they will not say these pleasantries when they leave. At this time, if you don't say this sentence, it will appear that you are very rude and cultured. When you say these words, people will say that this little girl is really polite and knows how to give people away. Especially when giving people away, you really don't have to go out to give people away. Just stand at the door and tell people to walk slowly, and your gift will arrive.
The second word is reminder! After all, their guests are going out. At this time, listen to people coming slowly. It may be just a simple sentence, or it may slow down his original fast pace. It may even avoid a disaster. For example, if he walks fast, it will make him sleep. If you warn him to walk slowly, it may slow him down and avoid the disaster of wrestling. Eating slowly is the same. A word can prevent the guest from choking himself or eating too fast.
? So if you can, you can also say some such polite expressions in daily communication to show your politeness and praise your parents for teaching you well.