As young as age ~4, girls are more egalitarian.

When evaluating drawings, boys were more likely than girls to award more stickers to more skilled drawings, whereas girls were more likely than boys to award the same number of stickers to both.https://t.co/ll6ZxXfe28 pic.twitter.com/L61tA6mx0z

— Cory Clark (@ImHardcory) February 26, 2021