What are the possible reasons for a 'little sister dominates older sister story'?

Sure. In a family, the little sister might be more assertive and confident. For example, when it comes to choosing a game to play during family time, the little sister firmly states her choice of a board game and convinces the older sister to play it with her, even though the older sister initially had a different idea.

One possible reason is that the sister might have a more assertive personality. For example, she could be born with a natural leadership quality that makes her take charge. Just like some people are more outgoing and confident from a young age.

Another reason could be that she doesn't fully understand how her actions affect her brother. She might think it's all in good fun, like when she teases him about his appearance or his hobbies. But to the brother, it can be really hurtful. She may not have developed enough empathy yet to realize that she's being a bully.

Jealousy can be a reason. Maybe the older brother gets more attention from parents or grandparents, so the little sister lashes out at him.

One reason could be that the little sister is imitating what she has seen adults do. Maybe she saw her parents diaper a baby and thought it would be fun to do the same to her older sibling.

One reason could be that the little brother has been disobedient. For instance, if he was told not to play with a certain dangerous item but did it anyway. Another reason might be that he has been unkind to others, like bullying a younger sibling or a neighbor kid, and the sister feels it's her responsibility to correct his behavior.

Genetics can be a major reason. Maybe the sister inherited taller genes from a grandparent or a distant relative. Sometimes, nutrition also plays a role. If the sister had a more balanced diet rich in essential nutrients like calcium and protein, it could lead to better growth. Another factor could be physical activity. If she was more active in sports or outdoor activities, it might have promoted her growth.

Well, she might be too busy being dominant and playing all day without taking time to wash her feet. Maybe she's always running around outside, sweating in her shoes, and not changing her socks often enough.

It might be due to a competition. For example, if they are both into the same sport or activity and there was a limited opportunity. Say, only one could represent their school in a tennis match, and they started fighting over who should be the one. They could have said mean things to each other which led to a full - on catfight.

One reason could be that she is more determined. In the tug - of - war example, her determination to win might have given her that extra strength. She doesn't give up easily.