First, parents should not be partial.
As for the feelings of brother and sister in life, I think parents are selfish, which leads to a poor relationship between brother and sister. Because many parents have told their younger sisters that their younger brother is too young, they should let him go and pamper him a little, which makes many younger sisters who are not very sensible unable to understand such words. Furthermore, I feel that my parents care about my brother privately and don't love themselves, which will make my sister hate my brother even more.
Second, always let them get along.
In order to maintain the brother-sister relationship in life, I think parents should always let their brothers and sisters handle the same things together or let their younger brothers help their sisters handle things. This can cultivate their tacit understanding, let them know each other better when they work together, and then gradually depend on each other. This kind of living together can make the feelings of husband and wife more harmonious, and parents don't need to worry too much.
Third, education should be carried out in time.
Parents should also give reasonable guidance to the feelings of brothers and sisters in daily life. The mistakes made by the two brothers and sisters should be treated equally, and reasonable education should be given when bullying each other. In the meantime, we must be careful not to be biased. Sometimes they don't listen. I think we should also carry out stick education, but we must also grasp a degree. Maybe they don't know how to keep a good relationship with each other now, but when they grow up, they will certainly understand their parents' good intentions and be grateful to them.