Q: What do older sisters do?
A: They help their younger siblings, set a good example, tell them the right thing, take care of them and play with them.
They help their younger siblings: Helping is one of the things that you need to do. They might need help or not. It is important to help them but sometimes they don't want it, even if it seems they're not doing the right way of whatever they're doing.
Set a good example: The big sister has to do the right thing. If not then it will be a- umm... it will be CHAOTIC. When you don't do the right thing then your siblings won't either. This why you should set a good example, not a bad one.
Tell them the right thing: Sometimes they don't see you doing the good example and the do the wrong thing. Yes, you have to tell them the right thing if your parents are busy.
Take care of them: When your parents are busy or not around, even when you have a babysitter, you still have to take care of them. The places you have to take care of them: home, kids area, church, at school, (if they go to school with you) and more, basically everywhere.
Play with them: That's right, play with them. Even though you're busy or doing homework, you should find some time to play with them. It is important that you play with your younger siblings, no matter what. It is what they expect you to do.
π§π»