Just days after thousands of little boys and girls opened up their Christmas presents, a video of one little girl blasting companies for marketing princesses to girls and super heroes to boys has gone viral, articulating the arguments for a debate that adults have had for years.

Riley Maida, a 4-year-old from Newburgh, N.Y., paced up and down the aisle of a toy store surrounded by baby dolls when she seemingly had an epiphany: it's unfair that girls have to buy princesses and boys have to buy superheroes. When her father Dennis Barry asks why she thinks it's not fair, she responds that "girls want superheroes and boys want superheroes, and girls want pink stuff and the boys."

Watch Riley and her Family Tonight on World News with Diane Sawyer 6:30 p.m. ET

Riley then surprisingly turns to very adult logic. She tears into companies for targeting certain toys toward a specific gender.

"'Because the companies, make these, try to trick the girls into buying the pink stuff instead of stuff that boys want to buy, right?"

When her dad assures her that boys can buy both, Riley - who loves playing with superheroes, including Bat Girl and Spiderman - wonders what's going on.

"Why do all the girls have to buy princesses? Some girls like superheroes, some girls like princesses. Some boys like superheroes, some boys like princesses. So why does all the girls have to buy pink stuff and all the boys have to buy different color stuff?"

Her father - along with millions -  seems to wonder the same thing.

"That's a good question, Riley."