A 3 year old who cares

A 3 yr old is possessive, not good at sharing, particular and definite in how the world should be run.
This 3yr old is just that way.....but she also cares.
This 3yr old found some favorite toys to play with. She enjoyed the thought of her brother playing too. When he reached in to play she struggled with him knocking them down and messing them up. The surprise for me as an observer was just moments after this shot, when her frown smoothed to a smile and she said, "it's ok, he is a baby. I will give him this one to play with" and she handed him her second favorite, the penguin. She continued to play with him enjoying his happiness and making sure to give him his penguin if he dropped it.
I guess a 3yr old is what a 3yr old is. Who made the rules on being 3 anyway.