That's a great question! It's wonderful that you're thinking about how to be the best family member you can be.
Ellen White wrote about how brothers and sisters should treat each other. She encouraged a spirit of kindness and helpfulness in the home.
She said that older sisters, for example, have an important role in helping their mother and setting a good example for their younger siblings. She wrote, **"The elder sisters can exert a strong influence upon the younger members of the family. The younger, witnessing the example of the older, will be led more by the principle of imitation than by oft-repeated precepts." (
3T 337.2)** This means that younger children learn a lot by watching and following the good example of their older siblings.
She also gave this advice to all children: **"Be kind to each other, and yield to each other's wishes." (
AY 40.2)**
So, while she places a special duty on children to obey their parents, she encourages all siblings to be kind, helpful, and willing to listen to each other to create a happy and peaceful home. When your older siblings are helping your parents by looking after you, it's important to listen to them and be helpful in return.