onion-souls:

tilthat:

TIL scientists confirmed that having a younger or older sister makes you a better person. A 2010-study, which involved 400 families with siblings at the age of 10 – 14, indicated that having a sister positively affected the mental well-being of the siblings.

via reddit.com

Sisters teach you tolerance, patience, understanding, stealth, treachery, and improvised weapon use