As a society we use popular stories to prepare ourselves for big journeys. I think because we sexualize women too much and also tabooify menstruation that we put a lot of girls through a lot of unnecessary pain. I imagine that it's rare that a girl feels super supported when going through their first few periods.

Sometimes they might just tell people they are sick. They don't want to explain exactly what's going on. A lot of the people around her might not understand. It's not worth grossing them out. 

I know growing up I never had a clue what a period was. And yes when I first heard of it I thought it was gross. Today I thought of how it would be better if we as families and communities talked more about stuff like periods. We treat kids like they can't handle things but I think they can. It's more about our insecurities as adults. We want to keep everything dinner table kosher. 

But screw that. Going forward I hope there are more children's stories that actually delve into the real type of shit that can get people prepared. Like a movie as popular as 

Frozen

 that openly has periods as part of the plot.