For example, your sister and brother like one thing very much. Sister, can you look at my brother's face more, feel his cuteness, and then give it to my brother because of this cuteness. If so, that's the best. If my sister can't even bear her own desires and wants that thing, then her sister will tell her parents that she won't give it to her brother, no, no! As for what my parents will do in the end, that's their problem. What my sister can do is to express her wishes.
Because, in theory, what mom and dad gave my sister was actually not my sister's. They want to redistribute, no problem.
In the final analysis, the elderly will always enjoy injustice. If you wronged yourself a little, you can help others a little more. The premise is voluntary. In a harmonious family, there must be people who voluntarily bear the injustice.
Life is full of holes, and it is actually a good thing for family members to fulfill each other.
If parents don't ask their younger sister to be polite out of preference for boys, this behavior is actually a good education and won't make children selfish.
From my personal point of view, brothers and sisters should really make way for their younger brothers and sisters. How can you grow up if you don't care about young people? Only when he is old enough to fight, you don't have to make way for him. When he can't beat you, he has to make way for you.