Rei and her friends were being chased by boys when I picked her up from daycare. (Her legs were tired from running so much). She talked about how the boys were Superman, Batman and Spiderman, but she and her friends were Super Girls to the Rescue. The three of them rotated through the various personae.
One of Super Girls was "Jingle Bell" who is very similar to Peter Pan's Tinkerbell, having magic powers and flight capability. Another one was Fashion Girl who apparently doesn't do too much. The third of them was "Sessy Girl". Puzzled, and fearing the worst, I inquired about this heroine's superpower. Rei shrugged and said, "I think she wears shorts".
4-years old ought to be too young to know about socialization's norms and gender stereotypes. *sigh*. Although she affirmed that they were all strong and smart and fast. Girl power!