I think it's because of Nobita's personality, Nobita's friend and Pang Hu's attitude towards Nobita. In our childhood memory, Doraemon is a very interesting person, but he is very reasonable. He will teach daxiong many things. Sometimes a word changes Nobita's attitude towards things. However, it is as mature as Doraemon. Pang Hu bullied Nobita so many times. Why is he willing to let Daxiong play with him?

in the play, daxiong is a coward. He didn't face any difficulties at first, but he escaped them. He always feels that he can't do anything well. Therefore, he can only go to Doraemon after being bullied by Pang Hu, and he will be taught some truth after Doraemon helps Nobita get justice. Because of his personality, Doraemon can only teach him not to give up when facing things and difficulties. When Pang Hu is bullied, the best way for Doraemon is to let him face it. Although it is difficult to avoid bullying in the face of Pang Hu, it may be the best way to make a person grow up.

unlike when we had the internet now, daxiong's circle of friends was very narrow. Except the students in the class, only Pang Hu grew up with them. No matter how many friends Nobita will lose if he chooses not to play with Pang Hu, the kind of harmonious friendship Nobita hopes is impossible because he has no friends. Although Pang Hu has been bullying Daxiong, and sometimes he even does a lot of excessive things, Daxiong does have too few friends, and he will not choose to leave because he always wants to blend in with his friends. Because he feels great pressure, being with friends will make him feel valuable. Being recognized by his friends is not only for Nobita, but also for our childhood.

Although Pang Hu often bullies Daxiong, when the real Daxiong needs it, Pang Hu will still come forward to protect Daxiong. If Daxiong wants to get on well with the people around him because he has no friends, so does Pang Hu's heart, because he is not excellent in all aspects and sometimes bullies other children, but his heart still hopes to have companions to play with. Although I know that Daxiong's baseball skills are poor, I still want to go to Daxiong, perhaps because I really can't find enough people, but the reason why I can think of playing baseball with Daxiong may be because Pang Hu also needs Daxiong to be a good friend in his heart. So I think it's because of Nobita's personality, Nobita's friend and Pang Hu's attitude towards Nobita.