It is normal that children like to compete with each other. If two children just get along, it takes time to get used to it. If we live together all the time, there is no point in going on like this. If I was educated, I would tell him that they are the same. If I still insist, I'll take it away and not eat it. The way children vent their emotions is also problematic and needs to be disciplined. If they are unreasonable, they need to be punished.