1. Getting you snacks when you are too lazy to get up
Lets be honest having them as personal slaves was kinda fun2. Scapegoats
I mean someone had to take the fall, right?
3. They always want to help just to have you around
I mean ALWAYS
4. Remind how annoying you used to be
Because everyone repeatedly says they act just like you did
5. Personal Therapists
You are constantly venting to them. Also whether they want to hear it or not they know they have to listen anyway.
6. They are your second closet
This is because they always stole your clothes and had to search for them in their rooms
7. Test subjects
Telling your brother a colored nail polish will dry clear just so you can test the color on him to make sure it will look good on you
8. Helped you learn the best ways to embarrass them
9. Gave you babysitting experience
But you kinda loved being in charge of them, be honest!
10. Taught you how to sell an idea before you knew that was a thing
11. They are your personal alarm clocks
How they don't understand the idea of sleeping in, We will never know